Package 'tidyFlowCore'

Title: tidyFlowCore: Bringing flowCore to the tidyverse
Description: tidyFlowCore bridges the gap between flow cytometry analysis using the flowCore Bioconductor package and the tidy data principles advocated by the tidyverse. It provides a suite of dplyr-, ggplot2-, and tidyr-like verbs specifically designed for working with flowFrame and flowSet objects as if they were tibbles; however, your data remain flowCore data structures under this layer of abstraction. tidyFlowCore enables intuitive and streamlined analysis workflows that can leverage both the Bioconductor and tidyverse ecosystems for cytometry data.
Authors: Timothy Keyes [cre] , Kara Davis [rth, own], Garry Nolan [rth, own]
Maintainer: Timothy Keyes <[email protected]>
License: MIT + file LICENSE
Version: 1.1.0
Built: 2024-11-01 06:27:34 UTC
Source: https://github.com/bioc/tidyFlowCore

Help Index


Order rows using column values

Description

Order rows using column values

Usage

## S3 method for class 'flowFrame'
arrange(.data, ..., .by_group = FALSE)

Arguments

.data

A flowFrame

...

Variables, or functions of variables, to arrange by.

.by_group

Unused.

Value

An object of the same type as .data. The output has the following properties: * All rows appear in the output, but (usually) in a different place. * Columns are not modified. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::arrange(feature_1)

Order rows using column values

Description

Order rows using column values

Usage

## S3 method for class 'flowSet'
arrange(.data, ..., .by_group = FALSE)

Arguments

.data

A flowSet

...

Variables, or functions of variables, to arrange by.

.by_group

Unused.

Value

An object of the same type as .data. The output has the following properties: * All rows appear in the output, but (usually) in a different place. * Columns are not modified. * The flowSet's pData will be preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::arrange(feature_1)

Coerce an object into a flowFrame

Description

Coerce an object into a flowFrame

Coerce a data.frame, tbl_df, or tof_tbl into a flowFrame

Usage

as_flowFrame(x, ...)

## S3 method for class 'tof_tbl'
as_flowFrame(x, ...)

Arguments

x

A data.frame, tbl_df, or tof_tbl.

...

Unused.

Value

A flowFrame

A flowFrame. Note that all non-numeric columns in 'x' will be removed.

Examples

NULL

NULL

Coerce an object into a flowSet

Description

Coerce an object into a flowSet

Coerce a tof_tbl into a flowSet

Usage

as_flowSet(x, ...)

## S3 method for class 'tof_tbl'
as_flowSet(x, group_cols, ...)

Arguments

x

A tof_tbl.

...

Unused.

group_cols

Unquoted names of the columns in 'x' that should be used to group cells into separate flowFrames. Supports tidyselect helpers. Defaults to NULL (all cells are written into a single flowFrame). Note that the metadata column name "name" is a special value in the flowSet) class, so if any of 'group_cols' refers to a column named "name," an error will be thrown.

Value

A flowSet

A flowSet in which cells are grouped into constituent flowFrames based on the values in 'group_cols'. If no 'group_cols' are specified, a flowFrame will be returned instead. Note that all non-numeric columns in will be removed.

Examples

NULL

NULL

Coerce flowFrames or flowSets into tibbles.

Description

Coerce flowFrames or flowSets into tibbles.

Usage

as_tof_tbl(
  flow_data,
  .name_method = c("tidyFlowCore", "featureNames", "colnames"),
  sep = "|",
  ...
)

Arguments

flow_data

A flowFrame or flowSet

.name_method

A string indicating how tidyFlowCore should extract column names from 'flow_data'. Available options are "tidyFlowCore" (the default), which uses tidyFlowCore's internal heuristic to name columns; "featureNames", which uses featureNames to name the columns; and "colnames", which uses colnames to name the columns. Note that, in most cases, "featureNames" and "colnames" will give identical results.

sep

A string indicating which symbol should be used to separate antigen names and channel names in the columns of the output tof_tbl when .name_method = 'tidyFlowCore'.

...

Optional method-specific arguments.

Value

A cytometry-specialized tibble called a 'tof_tbl'.

Examples

input_file <- system.file("extdata", "0877408774.B08", package="flowCore")

input_flowframe <- flowCore::read.FCS(input_file)

tof_tibble <- as_tof_tbl(input_flowframe)

Convert an object into a tibble-flowCore abstraction (a 'tof_tbl')

Description

Convert an object into a tibble-flowCore abstraction (a 'tof_tbl')

Usage

## S3 method for class 'flowSet'
as_tof_tbl(
  flow_data,
  .name_method = c("tidyFlowCore", "featureNames", "colnames"),
  sep = "|",
  ...,
  include_metadata = FALSE,
  include_tidyFlowCore_identifier = FALSE
)

Arguments

flow_data

A FlowSet

.name_method

A string indicating how tidyFlowCore should extract column names for the output tof_tbl from 'flow_data'. Available options are "tidyFlowCore" (the default), which uses tidyFlowCore's internal heuristic to name columns; "featureNames", which uses featureNames to name the columns; and "colnames", which uses colnames to name the columns.

sep

A string to use to separate the antigen name and its associated channel name in the column names of the output tibble. Defaults to "|".

...

Currently unused.

include_metadata

A boolean value indicating if the metadata for each .fcs file read by flowCore (stored in pData) should be merged into the final result. Defaults to FALSE.

include_tidyFlowCore_identifier

A boolean value indicating if tidyFlowCore's internal identifier for each flowFrame in the flowSet should be included in the output tof_tbl result. Defaults to FALSE.

Value

A cytometry-specialized tibble called a 'tof_tbl'.


Count the observations in each group.

Description

Count the observations in each group.

Usage

## S3 method for class 'flowFrame'
count(x, ..., wt = NULL, sort = FALSE, name = NULL)

Arguments

x

A flowFrame

...

Variables to group by, named according to featureNames

wt

If NULL (the default), counts the number of rows in each group. If a variable, computes sum(wt) for each group.

sort

If TRUE, will show the largest groups at the top.

name

If omitted, it will default to n. If there's already a column called n, it will use nn. If there's a column called n and nn, it'll use nnn, and so on, adding ns until it gets a new name.

Value

A data.frame containing the groupwise counts.

Examples

my_flowframe <-
  simulate_cytometry_data()$flowframe |>
    dplyr::mutate(
      random_group =
        sample(
          c("a", "b"),
          size = nrow(simulate_cytometry_data()$flowframe),
          replace = TRUE
        )
    )

 my_flowframe |>
   dplyr::count(random_group)

Count the observations in each group.

Description

Count the observations in each group.

Usage

## S3 method for class 'flowSet'
count(x, ..., wt = NULL, sort = FALSE, name = NULL)

Arguments

x

A flowSet

...

Variables to group by, named according to featureNames or the columns of the flowSet's pData

wt

If NULL (the default), counts the number of rows in each group. If a variable, computes sum(wt) for each group.

sort

If TRUE, will show the largest groups at the top.

name

If omitted, it will default to n. If there's already a column called n, it will use nn. If there's a column called n and nn, it'll use nnn, and so on, adding ns until it gets a new name.

Value

A data.frame containing the groupwise counts. If no columns are specified in '...', the grouping is performed by experiment in the flowSet. Otherwise, the columns specified by '...' will be used for grouping.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::count()

my_flowset |>
  dplyr::count(cell_type)

Keep rows that match a condition.

Description

Keep rows that match a condition.

Usage

## S3 method for class 'flowFrame'
filter(.data, ..., .by = NULL, .preserve = FALSE)

Arguments

.data

A flowFrame

...

Expressions that return a logical value, and are defined in terms of the variables in the featureNames of .data. If multiple expressions are included, they are combined with the & operator. Only rows for which all conditions evaluate to TRUE are kept.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.preserve

Unused.

Value

An object of the same type as .data. The output has the following properties: * Rows are a subset of the input, but appear in the same order. * Columns are not modified. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::filter(feature_1 > 50)

Keep rows that match a condition.

Description

Keep rows that match a condition.

Usage

## S3 method for class 'flowSet'
filter(.data, ..., .by = NULL, .preserve = FALSE)

Arguments

.data

A flowSet

...

Expressions that return a logical value, and are defined in terms of the variables in the featureNames of the flowFrames in .data. If multiple expressions are included, they are combined with the & operator. Only rows for which all conditions evaluate to TRUE are kept.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.preserve

Unused.

Value

An object of the same type as .data. The output has the following properties: * Rows are a subset of the input, but appear in the same order. * Columns are not modified. * The flowSet's pData will be preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::filter(feature_1 > 50)

Create a new ggplot.

Description

Create a new ggplot.

Usage

## S3 method for class 'flowFrame'
ggplot(
  data = NULL,
  mapping = ggplot2::aes(),
  ...,
  environment = parent.frame()
)

Arguments

data

Default dataset to use for plot in the form of a flowFrame. If not specified, must be supplied in each layer added to the plot.

mapping

Default list of aesthetic mappings to use for plot. If not specified, must be supplied in each layer added to the plot. Note that variable names used for aesthetic mappings come from the featureNames of the input flowFrame.

...

Other arguments passed on to methods. Not currently used.

environment

Deprecated. Used prior to tidy evaluation.

Value

A ggplot

Examples

simulations <- simulate_cytometry_data()
test_flowframe <- simulations$flowframe

flowframe_plot <-
  test_flowframe |>
  ggplot2::ggplot(ggplot2::aes(x = feature_1, y = feature_2)) +
  ggplot2::geom_point()

Create a new ggplot.

Description

Create a new ggplot.

Usage

## S3 method for class 'flowSet'
ggplot(
  data = NULL,
  mapping = ggplot2::aes(),
  ...,
  environment = parent.frame()
)

Arguments

data

Default dataset to use for plot in the form of a flowSet. If not specified, must be supplied in each layer added to the plot. Note that any metadata stored in pData will be merged into the underlying flowCore-tibble abstraction and will thus be available for plotting.

mapping

Default list of aesthetic mappings to use for plot. If not specified, must be supplied in each layer added to the plot. Note that variable names used for aesthetic mappings come from the featureNames of the input flowSet's constituent flowFrames.

...

Other arguments passed on to methods. Not currently used.

environment

Deprecated. Used prior to tidy evaluation.

Value

A ggplot

Examples

simulations <- simulate_cytometry_data()
test_flowset <- simulations$flowset

flowset_plot <-
  test_flowset |>
  ggplot2::ggplot(ggplot2::aes(x = feature_1, y = feature_2)) +
  ggplot2::geom_point()

flowset_plot_with_metadata <-
  test_flowset |>
  # note that `patient` below comes from the flowSet's metadata (pData)
  ggplot2::ggplot(ggplot2::aes(x = feature_1, y = feature_2, color = patient)) +
  ggplot2::geom_point()

Group a flowFrame into a flowSet using one or more variables.

Description

Group a flowFrame into a flowSet using one or more variables.

Usage

## S3 method for class 'flowFrame'
group_by(.data, ..., .add = FALSE, .drop = dplyr::group_by_drop_default(.data))

Arguments

.data

A flowFrame

...

Unquoted variables or columns to group by according to .data's featureNames.

.add

Unused.

.drop

Unused.

Value

A flowSet containing one flowFrame for each of the unique combinations of columns selected in .... Metadata about grouping columns will be stored in the output flowSet's pData.

Examples

my_flowframe <-
  simulate_cytometry_data()$flowframe |>
    dplyr::mutate(
      random_group =
        sample(
          c("a", "b"),
          size = nrow(simulate_cytometry_data()$flowframe),
          replace = TRUE
        )
    )

 my_flowframe |>
   dplyr::group_by(random_group)

Make the AnnotatedDataFrame needed for the flowFrame class

Description

Make the AnnotatedDataFrame needed for the flowFrame class

Usage

make_flowcore_annotated_data_frame(maxes_and_mins)

Arguments

maxes_and_mins

a data.frame containing information about the max and min values of each channel to be saved in the flowFrame.

Value

An AnnotatedDataFrame.

Examples

NULL

A character vector of CyTOF metal name patterns supported by tidyFlowCore

Description

A character vector used by 'tof_find_panel_info' to detect and parse which CyTOF metals correspond to each channel in an input .fcs file.

Usage

data(metal_masterlist)

Format

A character vector in which each entry is a pattern that tidyFlowCore searches for in every CyTOF channel in input .fcs files. These patterns are an amalgamate of example .fcs files sampled from the studies linked below.

Value

None

Source

https://github.com/kara-davis-lab/DDPR https://cytobank.org/nolanlab/reports/Levine2015.html https://cytobank.org/nolanlab/reports/Spitzer2015.html https://cytobank.org/nolanlab/reports/Spitzer2017.html https://community.cytobank.org/cytobank/projects/609


Create, modify, and delete columns.

Description

Create, modify, and delete columns.

Usage

## S3 method for class 'flowFrame'
mutate(.data, ...)

Arguments

.data

A flowFrame

...

Name-value pairs. The name (the left side of the equals sign) gives the name of the column in the output. The right side of the equation performs computations using the names of each channel according to featureNames. Supports tidyselection.

Value

A flowFrame. The output has the following properties: * Columns from .data will be preserved according to the .keep argument. * Existing columns that are modified by ... will always be returned in their original location. * New columns created through ... will be placed according to the .before and .after arguments. * The number of rows is not affected. * Columns given the value NULL will be removed.

Examples

my_flowframe <-
  simulate_cytometry_data()$flowframe |>
    dplyr::mutate(
      random_group =
        sample(
          c("a", "b"),
          size = nrow(simulate_cytometry_data()$flowframe),
          replace = TRUE
        )
    )

 my_flowframe |>
   dplyr::mutate(new_feature = feature_1 + feature_2)

Create, modify, and delete columns.

Description

Create, modify, and delete columns.

Usage

## S3 method for class 'flowSet'
mutate(.data, ...)

Arguments

.data

A flowSet

...

Name-value pairs. The name (the left side of the equals sign) gives the name of the column in the output. The right side of the equation performs computations using the names of each channel according to featureNames. Supports tidyselection.

Value

A flowSet. The output has the following properties: * Columns from .data will be preserved according to the .keep argument. * Existing columns that are modified by ... will always be returned in their original location. * New columns created through ... will be placed according to the .before and .after arguments. * The number of rows is not affected. * Columns given the value NULL will be removed.

Examples

my_flowset <-
  simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::mutate(new_feature = feature_1 + feature_2)

Nest a flowFrame into a flowSet

Description

Nest a flowFrame into a flowSet

Usage

## S3 method for class 'flowFrame'
nest(.data, ..., .by = NULL, .key = NULL, .names_sep = NULL)

Arguments

.data

A flowFrame

...

Columns to nest; these will appear in the inner flowFrames comprising the output flowSet. Specified using name-variable pairs of the form new_col = c(col1, col2, col3). The right hand side can be any valid tidyselect expression. If not supplied, then ... is derived as all columns not selected by .by.

.by

Columns to nest by; these will be stored in the pData of the output flowSet. .by can be used in place of or in conjunction with columns supplied through .... If not supplied, then .by is derived as all columns not selected by ....

.key

Unused.

.names_sep

Unused.

Value

A flowSet wherein cells are grouped into constituent flowFrames based on which columns are used to nest.

Examples

my_flowframe <-
  simulate_cytometry_data()$flowframe |>
  dplyr::mutate(
    random_group =
      sample(
        c("a", "b"),
        size = nrow(simulate_cytometry_data()$flowframe),
        replace = TRUE
      )
  )
my_flowframe |>
  tidyr::nest(.by = random_group)

Constructor for a tof_tibble.

Description

Constructor for a tof_tibble.

Usage

new_tof_tibble(x = dplyr::tibble(), panel = dplyr::tibble())

Arguments

x

A data.frame or tibble containing single-cell mass cytometry data such that rows are cells and columns are CyTOF measurements.

panel

A data.frame or tibble containing information about the panel for the mass cytometry data in x.

Value

A 'tof_tbl', a tibble extension that tracks a few other attributes that are useful for CyTOF data analysis.

See Also

Other tof_tbl utilities: tof_get_panel(), tof_set_panel()


Extract a single column.

Description

pull() is similar to $. It's mostly useful because it looks a little nicer in pipes.

Usage

## S3 method for class 'flowFrame'
pull(.data, var = -1, name = NULL, ...)

Arguments

.data

A flowFrame.

var

A variable specified as: * a literal variable name * a positive integer, giving the position counting from the left * a negative integer, giving the position counting from the right.

name

An optional parameter that specifies the column to be used as names for a named vector. Specified in a similar manner as var.

...

For use by methods.

Value

A vector the same size as .data.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::pull(feature_1)

Extract a single column.

Description

pull() is similar to $. It's mostly useful because it looks a little nicer in pipes.

Usage

## S3 method for class 'flowSet'
pull(.data, var = -1, name = NULL, ...)

Arguments

.data

A flowSet.

var

A variable specified as: * a literal variable name * a positive integer, giving the position counting from the left * a negative integer, giving the position counting from the right.

name

An optional parameter that specifies the column to be used as names for a named vector. Specified in a similar manner as var.

...

For use by methods.

Value

A vector the same size as .data.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::pull(feature_1)

Rename columns in a flowFrame

Description

Rename columns in a flowFrame

Usage

## S3 method for class 'flowFrame'
rename_with(.data, .fn, .cols = dplyr::everything(), ...)

Arguments

.data

A flowFrame

.fn

A function used to transform the selected .cols. Should return a character vector the same length as the input.

.cols

Unquoted column names indicating which columns to rename (as specified by featureNames).

...

Additional arguments passed onto .fn.

Value

An object of the same type as .data. The output has the following properties: * Rows are not affected. * Column names are changed; column order is preserved. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::rename_with(.fn = toupper)

Rename columns in a flowSet

Description

Rename columns in a flowSet

Usage

## S3 method for class 'flowSet'
rename_with(.data, .fn, .cols = dplyr::everything(), ...)

Arguments

.data

A flowSet

.fn

A function used to transform the selected .cols. Should return a character vector the same length as the input.

.cols

Unquoted column names indicating which columns to rename (as specified by the featureNames of the flowFrames making up the flowSet).

...

Additional arguments passed onto .fn.

Value

An object of the same type as .data. The output has the following properties: * Rows are not affected. * Column names are changed; column order is preserved. * The flowSet's pData will be preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::rename_with(.fn = toupper)

Rename columns in a flowFrame

Description

Rename columns in a flowFrame

Usage

## S3 method for class 'flowFrame'
rename(.data, ...)

Arguments

.data

A flowFrame

...

Unquoted name-value pairs (as specified by featureNames). Use new_name = old_name to rename selected columns

Value

An object of the same type as .data. The output has the following properties: * Rows are not affected. * Column names are changed; column order is preserved. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::rename(new_feature = feature_1)

Rename columns in a flowSet

Description

Rename columns in a flowSet

Usage

## S3 method for class 'flowSet'
rename(.data, ...)

Arguments

.data

A flowSet

...

Unquoted name-value pairs (as specified by the featureNames of the flowFrames making up the flowSet). Use new_name = old_name to rename selected columns

Value

An object of the same type as .data. The output has the following properties: * Rows are not affected. * Column names are changed; column order is preserved. * The flowSet's pData will be preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::rename(new_feature = feature_1)

Keep or drop columns using their names and types.

Description

Keep or drop columns using their names and types.

Usage

## S3 method for class 'flowFrame'
select(.data, ...)

Arguments

.data

A flowFrame

...

One or more unquoted expressions separated by commas. Variables names (as specified by featureNames) can be used as if they were positions in the flowFrame). Supports tidyselection.

Value

A flowFrame. The output has the following properties: * Rows are not affected. * Output columns are a subset of input columns, potentially with a different order. Columns will be renamed if new_name = old_name form is used. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::select(feature_1)

Keep or drop columns using their names and types.

Description

Keep or drop columns using their names and types.

Usage

## S3 method for class 'flowSet'
select(.data, ...)

Arguments

.data

A flowSet

...

One or more unquoted expressions separated by commas. Variables names (as specified by the featureNames of the component flowFrames that make up the flowSet) can be used as if they were positions in the flowSet). Supports tidyselection.

Value

A flowSet. The output has the following properties: * Rows are not affected. * Output columns are a subset of input columns, potentially with a different order. Columns will be renamed if new_name = old_name form is used. * The flowSet's pData will be preserved.

Examples

my_flowset <-
  simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::select(feature_1)

Simulate Cytometry Data for FlowSet and FlowFrame Analysis

Description

Simulate Cytometry Data for FlowSet and FlowFrame Analysis

Usage

simulate_cytometry_data(num_cells = 100, num_features = 10, num_flowframes = 5)

Arguments

num_cells

An integer indicating the number of cells to simulate.

num_features

An integer indicating how many features to simulate.

num_flowframes

An integer indicating how many flowFrames to simulate for the simulated flowSet.

Value

A list containing two entries: a flowFrame and a flowSet.

Examples

simulate_cytometry_data()

Subset rows at the head of a data structure.

Description

Subset rows at the head of a data structure.

Usage

## S3 method for class 'flowFrame'
slice_head(.data, ..., n, prop, by = NULL)

Arguments

.data

A flowFrame

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowFrame's identifier is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice_head(n = 5)

Subset rows at the head of a data structure.

Description

Subset rows at the head of a data structure.

Usage

## S3 method for class 'flowSet'
slice_head(.data, ..., n, prop, by = NULL)

Arguments

.data

A flowSet

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice_head(n = 10)

Subset rows of a data structure in order.

Description

Subset rows of a data structure in order.

Usage

## S3 method for class 'flowFrame'
slice_max(
  .data,
  order_by,
  ...,
  n,
  prop,
  by = NULL,
  with_ties = TRUE,
  na_rm = FALSE
)

Arguments

.data

A flowFrame

order_by

Variable or function of variables to order by. To order by multiple variables, wrap them in a data frame or tibble.

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

with_ties

Should ties be kept together? The default, TRUE, may return more rows than you request. Use FALSE to ignore ties, and return the first n rows.

na_rm

Should missing values in order_by be removed from the result? If FALSE, NA values are sorted to the end so they will only be included if there are insufficient non-missing values to reach n/prop.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowFrame's identifier is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice_max(order_by = feature_1, n = 5)

Subset rows of a data structure in order.

Description

Subset rows of a data structure in order.

Usage

## S3 method for class 'flowSet'
slice_max(
  .data,
  order_by,
  ...,
  n,
  prop,
  by = NULL,
  with_ties = TRUE,
  na_rm = FALSE
)

Arguments

.data

A flowSet

order_by

Variable or function of variables to order by. To order by multiple variables, wrap them in a data frame or tibble.

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

with_ties

Should ties be kept together? The default, TRUE, may return more rows than you request. Use FALSE to ignore ties, and return the first n rows.

na_rm

Should missing values in order_by be removed from the result? If FALSE, NA values are sorted to the end so they will only be included if there are insufficient non-missing values to reach n/prop.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice_max(order_by = feature_1, n = 10)

Subset rows of a data structure in order.

Description

Subset rows of a data structure in order.

Usage

## S3 method for class 'flowFrame'
slice_min(
  .data,
  order_by,
  ...,
  n,
  prop,
  by = NULL,
  with_ties = TRUE,
  na_rm = FALSE
)

Arguments

.data

A flowFrame

order_by

Variable or function of variables to order by. To order by multiple variables, wrap them in a data frame or tibble.

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

with_ties

Should ties be kept together? The default, TRUE, may return more rows than you request. Use FALSE to ignore ties, and return the first n rows.

na_rm

Should missing values in order_by be removed from the result? If FALSE, NA values are sorted to the end so they will only be included if there are insufficient non-missing values to reach n/prop.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowFrame's identifier is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice_min(order_by = feature_1, n = 5)

Subset rows of a data structure in order.

Description

Subset rows of a data structure in order.

Usage

## S3 method for class 'flowSet'
slice_min(
  .data,
  order_by,
  ...,
  n,
  prop,
  by = NULL,
  with_ties = TRUE,
  na_rm = FALSE
)

Arguments

.data

A flowSet

order_by

Variable or function of variables to order by. To order by multiple variables, wrap them in a data frame or tibble.

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

with_ties

Should ties be kept together? The default, TRUE, may return more rows than you request. Use FALSE to ignore ties, and return the first n rows.

na_rm

Should missing values in order_by be removed from the result? If FALSE, NA values are sorted to the end so they will only be included if there are insufficient non-missing values to reach n/prop.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice_max(order_by = feature_1, n = 10)

Subset rows randomly

Description

Subset rows randomly

Usage

## S3 method for class 'flowFrame'
slice_sample(.data, ..., n, prop, by = NULL, weight_by = NULL, replace = FALSE)

Arguments

.data

A flowFrame

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

weight_by

Sampling weights. This must evaluate to a vector of non-negative numbers the same length as the input. Weights are automatically standardized to sum to 1.

replace

Should sampling be performed with (TRUE) or without (FALSE, the default) replacement.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowFrame's identifier is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice_sample(n = 5)

Subset rows randomly

Description

Subset rows randomly

Usage

## S3 method for class 'flowSet'
slice_sample(.data, ..., n, prop, by = NULL, weight_by = NULL, replace = FALSE)

Arguments

.data

A flowSet

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

weight_by

Sampling weights. This must evaluate to a vector of non-negative numbers the same length as the input. Weights are automatically standardized to sum to 1.

replace

Should sampling be performed with (TRUE) or without (FALSE, the default) replacement.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice_sample(n = 10)

Subset rows at the tail of a data structure.

Description

Subset rows at the tail of a data structure.

Usage

## S3 method for class 'flowFrame'
slice_tail(.data, ..., n, prop, by = NULL)

Arguments

.data

A flowFrame

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowFrame's identifier is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice_tail(n = 5)

Subset rows at the tail of a data structure.

Description

Subset rows at the tail of a data structure.

Usage

## S3 method for class 'flowSet'
slice_tail(.data, ..., n, prop, by = NULL)

Arguments

.data

A flowSet

...

Unused.

n, prop

Provide either n, the number of rows, or prop, the proportion of rows to select. If neither are supplied, n = 1 will be used. If n is greater than the number of rows in the group (or prop > 1), the result will be silently truncated to the group size. prop will be rounded towards zero to generate an integer number of rows.

A negative value of n or prop will be subtracted from the group size. For example, n = -2 with a group of 5 rows will select 5 - 2 = 3 rows; prop = -0.25 with 8 rows will select 8 * (1 - 0.25) = 6 rows.

by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice_tail(n = 10)

Subset rows using their positions

Description

Subset rows using their positions

Usage

## S3 method for class 'flowFrame'
slice(.data, ..., .by = NULL, .preserve = FALSE)

Arguments

.data

A flowFrame

...

Integer row values (to keep).

.by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

.preserve

Currently unused.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::slice(1)

Subset rows using their positions

Description

Subset rows using their positions

Usage

## S3 method for class 'flowSet'
slice(.data, ..., .by = NULL, .preserve = FALSE)

Arguments

.data

A flowSet

...

Integer row values (to keep).

.by

Optionally, an unquoted selection of columns to group by for just this operation. An alternative to group_by.

.preserve

Currently unused.

Value

An object of the same type as .data. The output has the following properties: * Each row may appear 0, 1, or many times in the output. * Columns are not modified. * Groups are not modified. * A flowSet's pData is preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::slice(1)

Summarize a flowFrame.

Description

Summarize a flowFrame.

Usage

## S3 method for class 'flowFrame'
summarise(.data, ..., .by = NULL, .groups = NULL)

Arguments

.data

.data A flowFrame

...

Name-value pairs of summary functions. The name will be the name of the variable in the result.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.groups

Grouping structure of the result. * "drop_last": dropping the last level of grouping. * "drop": All levels of grouping are dropped. * "keep": Same grouping structure as .data. * "rowwise": Each row is its own group.

Value

A data.frame containing the summarized result.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::summarise(feature_1_mean = mean(feature_1))

Summarize a flowSet.

Description

Summarize a flowSet.

Usage

## S3 method for class 'flowSet'
summarise(.data, ..., .by = NULL, .groups = NULL)

Arguments

.data

.data A flowSet

...

Name-value pairs of summary functions. The name will be the name of the variable in the result.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.groups

Grouping structure of the result. * "drop_last": dropping the last level of grouping. * "drop": All levels of grouping are dropped. * "keep": Same grouping structure as .data. * "rowwise": Each row is its own group.

Value

A data.frame containing the summarized result.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::summarise(feature_1_mean = mean(feature_1))

Summarize a flowFrame.

Description

Summarize a flowFrame.

Usage

## S3 method for class 'flowFrame'
summarize(.data, ..., .by = NULL, .groups = NULL)

Arguments

.data

.data A flowFrame

...

Name-value pairs of summary functions. The name will be the name of the variable in the result.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.groups

Grouping structure of the result. * "drop_last": dropping the last level of grouping. * "drop": All levels of grouping are dropped. * "keep": Same grouping structure as .data. * "rowwise": Each row is its own group.

Value

A data.frame containing the summarized result.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::summarize(feature_1_mean = mean(feature_1))

Summarize a flowSet.

Description

Summarize a flowSet.

Usage

## S3 method for class 'flowSet'
summarize(.data, ..., .by = NULL, .groups = NULL)

Arguments

.data

A flowSet

...

Name-value pairs of summary functions. The name will be the name of the variable in the result.

.by

Optionally, a selection of columns to group by for just this operation, functioning as an alternative to group_by().

.groups

Grouping structure of the result. * "drop_last": dropping the last level of grouping. * "drop": All levels of grouping are dropped. * "keep": Same grouping structure as .data. * "rowwise": Each row is its own group.

Value

A data.frame containing the summarized result.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::summarize(feature_1_mean = mean(feature_1))

Use tidyFlowCore's opinionated heuristic for extracting a high-dimensional cytometry panel's channel-antigen pairs from a flowFrame (read from a .fcs file.)

Description

Using the character vectors obtained from the 'name' and 'desc' columns of the parameters of the data of a flowFrame, infer the cytometry panel used to collect the data and return it as a tidy tibble.

Usage

tof_find_panel_info(input_flowFrame)

Arguments

input_flowFrame

A flowFrame (just read from an .fcs file) from which a high-dimensional cytometry panel should be extracted

Value

A tibble with 4 columns ('channels', 'antigens', '.flowCore_featureNames' and '.flowCore_colnames'). The first two columns correspond to the channels and antigens of the high-dimensional cytometry panel used during data acquisition, respectively. The last two channels represent the featureNames and colnames attributes used to represent each channel in the input flowFrame.


Get panel information from a tof_tibble

Description

Get panel information from a tof_tibble

Usage

tof_get_panel(tof_tibble)

Arguments

tof_tibble

A 'tof_tbl'.

Value

A tibble containing information about the CyTOF panel that was used during data acquisition for the data contained in 'tof_tibble'.

See Also

Other tof_tbl utilities: new_tof_tibble(), tof_set_panel()

Examples

NULL

Set panel information from a tof_tbl

Description

Set panel information from a tof_tbl

Usage

tof_set_panel(tof_tibble, panel)

Arguments

tof_tibble

A 'tof_tbl'.

panel

A data.frame containing two columns ('channels' and 'antigens') representing the information about a panel

Value

A 'tof_tbl' containing information about the CyTOF panel that was used during data acquisition for the data contained in the input 'tof_tibble'. Two columns are required: "metals" and "antigens".

See Also

Other tof_tbl utilities: new_tof_tibble(), tof_get_panel()

Examples

NULL

Create, modify, and delete columns.

Description

Create, modify, and delete columns.

Usage

## S3 method for class 'flowFrame'
transmute(.data, ...)

Arguments

.data

A flowFrame

...

Name-value pairs. The name (the left side of the equals sign) gives the name of the column in the output. The right side of the equation performs computations using the names of each channel according to featureNames. Supports tidyselection.

Value

A flowFrame. The output has the following properties: * Columns created or modified through ... will be returned in the order specified by .... * The number of rows is not affected. * Columns given the value NULL will be removed. * The flowFrame's identifier will be preserved.

Examples

my_flowframe <- simulate_cytometry_data()$flowframe

 my_flowframe |>
   dplyr::transmute(new_feature = feature_1 + feature_2)

Create, modify, and delete columns.

Description

Create, modify, and delete columns.

Usage

## S3 method for class 'flowSet'
transmute(.data, ...)

Arguments

.data

A flowSet

...

Name-value pairs. The name (the left side of the equals sign) gives the name of the column in the output. The right side of the equation performs computations using the names of each channel according to the featureNames of .data's constituent flowFrames. Supports tidyselection.

Value

A flowSet. The output has the following properties: * Columns created or modified through ... will be returned in the order specified by .... * The number of rows is not affected. * Columns given the value NULL will be removed. * The flowSet's pData will be preserved.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::transmute(new_feature = feature_1 + feature_2)

Ungroup a flowSet

Description

Ungroup a flowSet

Usage

## S3 method for class 'flowSet'
ungroup(x, ...)

Arguments

x

A flowSet

...

Variables/columns in pData to remove from the grouping. Note that the "name" field in a flowSet's pData is special in flowCore, so requesting an ungrouping by name will result in a copied column called ".tidyFlowCore_name" in the result. Also note that the column ".tidytof_unique_identifier" is used internally and will not have any effect on the ungrouping.

Value

A flowFrame or flowSet depending on the degree of ungrouping. Note that unnest-ing and ungrouping a flowSet are equivalent.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  dplyr::ungroup()

Unnest a flowSet into a single flowFrame

Description

Unnest a flowSet into a single flowFrame

Usage

## S3 method for class 'flowSet'
unnest(
  data,
  cols,
  ...,
  keep_empty = FALSE,
  ptype = NULL,
  names_sep = NULL,
  names_repair = "check_unique"
)

Arguments

data

A flowSet

cols

Columns in pData to unnest.

...

Unused.

keep_empty

Unused.

ptype

Unused.

names_sep

Unused.

names_repair

Unused.

Value

A flowFrame or flowSet depending on the degree of unnest-ing. Note that unnest-ing and ungrouping a flowSet are equivalent.

Examples

my_flowset <- simulate_cytometry_data()$flowset

my_flowset |>
  tidyr::unnest(cols = c(patient, cell_type))

my_flowset |>
  tidyr::unnest(cols = patient)