Package 'CRISPRball'

Title: Shiny Application for Interactive CRISPR Screen Visualization, Exploration, Comparison, and Filtering
Description: A Shiny application for visualization, exploration, comparison, and filtering of CRISPR screens analyzed with MAGeCK RRA or MLE. Features include interactive plots with on-click labeling, full customization of plot aesthetics, data upload and/or download, and much more. Quickly and easily explore your CRISPR screen results and generate publication-quality figures in seconds.
Authors: Jared Andrews [aut, cre] , Jacob Steele [ctb]
Maintainer: Jared Andrews <[email protected]>
License: MIT + file LICENSE
Version: 1.3.2
Built: 2024-12-20 02:57:37 UTC
Source: https://github.com/bioc/CRISPRball

Help Index


Build SQLite database of DepMap data

Description

Build SQLite database of DepMap data

Usage

build_depmap_db(
  retrieve = c("rnai", "crispr", "dependency", "cn", "ccle_tpm", "meta", "drug",
    "gene.summary", "release"),
  file = "depmap_db.sqlite"
)

Arguments

retrieve

Character vector of data to retrieve from DepMap. Options include:

file

Name of SQLite database file to create.

Value

Name of SQLite database containing DepMap data.

Author(s)

Jared Andrews

See Also

depmap_rnai, depmap_crispr, depmap_copyNumber, depmap_TPM, depmap_metadata, depmap_gene_summary, depmap_drug_sensitivity, depmap_release dbPool, dbWriteTable

Examples

library(CRISPRball)
build_depmap_db(retrieve = "release")

Create an interactive Shiny app for visualization & exploration of CRISPR analyses

Description

Create an interactive Shiny app for visualization & exploration of CRISPR analyses

Usage

CRISPRball(
  gene.data = NULL,
  sgrna.data = NULL,
  count.summary = NULL,
  norm.counts = NULL,
  h.id = "mag1",
  positive.ctrl.genes = NULL,
  essential.genes = NULL,
  depmap.db = NULL,
  genesets = NULL,
  return.app = TRUE
)

Arguments

gene.data

A named list containing gene_summary.txt tables as data.frames. Multiple data.frames may be provided, one per element of the list. Users will be able to swap between them within the app. List element names should match names of sgrna.data list elements.

sgrna.data

A named list containing sgrna_summary.txt tables as data.frames. Multiple data.frames may be provided, one per element of the list. Users will be able to swap between them within the app. List element names should match names of gene.data list elements.

count.summary

Matrix or dataframe containing count summary (countsummary.txt) as generated by mageck count.

norm.counts

Matrix or dataframe containing normalized counts (count_normalized.txt) as generated by mageck count.

h.id

String indicating unique ID for interactive plots. Required if multiple apps are run within the same Rmd file.

positive.ctrl.genes

Optional character vector of gene identifiers for positive control genes from the screen so that they can be easily filtered.

essential.genes

Optional character vector of gene identifiers of common essential genes (i.e. pan-lethal) so that they can be easily filtered. If provided, overrides the depmap essential genes.

depmap.db

Optional character scalar for name of SQLite database returned by build_depmap_db.

genesets

Optional named list containing genesets that can be interactively highlighted on the plots. The elements of the list should each be a geneset with gene identifiers matching those used in the results.

return.app

Optional boolean indicating whether a Shiny app should be returned. TRUE by default. If FALSE, a named list of app elements (ui and server) will be returned instead. Useful for deploying as a standalone shiny app.

Details

Features with no variation will be removed prior to pca being run for the PCA visualization. Gene labels can be added to the MAplot and volcano plot by clicking a point. The labels can also be dragged around, though adding labels will reset the positions, so it's recommended to add all labels prior to re-positioning them.

Value

A Shiny app containing interactive visualizations of CRISPR analysis results.

Author(s)

Jared Andrews, Jacob Steele

Examples

library(CRISPRball)
# Create app with no data loaded.
app <- CRISPRball()
if (interactive()) {
    shiny::runApp(app)
}

# Create app with data loaded.
# Create lists of results summaries for each dataset.
d1.genes <- read.delim(system.file("extdata", "esc1.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
d2.genes <- read.delim(system.file("extdata", "plasmid.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)

d1.sgrnas <- read.delim(system.file("extdata", "esc1.sgrna_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
d2.sgrnas <- read.delim(system.file("extdata", "plasmid.sgrna_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)

count.summ <- read.delim(system.file("extdata", "escneg.countsummary.txt",
    package = "CRISPRball"
), check.names = FALSE)
norm.counts <- read.delim(system.file("extdata", "escneg.count_normalized.txt",
    package = "CRISPRball"
), check.names = FALSE)

genes <- list(ESC = d1.genes, plasmid = d2.genes)
sgrnas <- list(ESC = d1.sgrnas, plasmid = d2.sgrnas)

app <- CRISPRball(
    gene.data = genes, sgrna.data = sgrnas,
    count.summary = count.summ, norm.counts = norm.counts
)
if (interactive()) {
    shiny::runApp(app)
}

DepMap copy number data

Description

The DepMap copy number data for CDK2.

Usage

data(depmap_22q1_cn)

Format

depmap_22q1_TPM

A dataframe with 1754 rows and 9 columns:

depmap_id

Depmap cell line ID

log_copy_number

log2 copy number

entrez_id

Numeric entrez gene ID

gene_name

Gene symbol

dataset

Screen type, either CRISPR or RNAi

cell_line_name

Cell line name

primary_disease

Cell line disease origin

lineage

Cell line lineage

lineage_subtype

Cell line lineage subtype, usually a malignancy

hover.string

String for hover text when plotting

Value

A dataframe containing DepMap 22Q1 copy number data.

Source

https://depmap.org/portal/download/all/

https://bioconductor.org/packages/release/data/experiment/html/depmap.html


DepMap CRISPR screen data

Description

The DepMap CRISPR screen data for CDK2.

Usage

data(depmap_22q1_crispr)

Format

depmap_22q1_crispr

A dataframe with 1070 rows and 9 columns:

depmap_id

Depmap cell line ID

dependency

Depmap dependency score

entrez_id

Numeric entrez gene ID

gene_name

Gene symbol

cell_line_name

Cell line name

primary_disease

Cell line disease origin

lineage

Cell line lineage

lineage_subtype

Cell line lineage subtype, usually a malignancy

hover.string

String for hover text when plotting

Value

A dataframe containing DepMap 22Q1 CRISPR screen data.

Source

https://depmap.org/portal/download/all/

https://bioconductor.org/packages/release/data/experiment/html/depmap.html


DepMap CRISPR & RNAi screen data

Description

The DepMap CRISPR & RNAi screen data for CDK2.

Usage

data(depmap_22q1_crispr_rnai)

Format

depmap_22q1_crispr_rnai

A dataframe with 1782 rows and 9 columns:

depmap_id

Depmap cell line ID

dependency

Depmap dependency score

entrez_id

Numeric entrez gene ID

gene_name

Gene symbol

dataset

Screen type, either CRISPR or RNAi

cell_line_name

Cell line name

primary_disease

Cell line disease origin

lineage

Cell line lineage

lineage_subtype

Cell line lineage subtype, usually a malignancy

hover.string

String for hover text when plotting

Value

A dataframe containing DepMap 22Q1 CRISPR and RNAi data.

Source

https://depmap.org/portal/download/all/

https://bioconductor.org/packages/release/data/experiment/html/depmap.html


DepMap RNAi screen data

Description

The DepMap RNAi screen data for CDK2.

Usage

data(depmap_22q1_rnai)

Format

depmap_22q1_rnai

A dataframe with 712 rows and 9 columns:

dependency

Depmap dependency score

entrez_id

Numeric entrez gene ID

gene_name

Gene symbol

depmap_id

Depmap cell line ID

cell_line_name

Cell line name

primary_disease

Cell line disease origin

lineage

Cell line lineage

lineage_subtype

Cell line lineage subtype, usually a malignancy

hover.string

String for hover text when plotting

Value

A dataframe containing DepMap 22Q1 RNAi screen data.

Source

https://depmap.org/portal/download/all/

https://bioconductor.org/packages/release/data/experiment/html/depmap.html


DepMap expression data

Description

The DepMap expression data for CDK2.

Usage

data(depmap_22q1_TPM)

Format

depmap_22q1_TPM

A dataframe with 1393 rows and 9 columns:

depmap_id

Depmap cell line ID

rna_expression

log2(TPM+1) expression

entrez_id

Numeric entrez gene ID

gene_name

Gene symbol

dataset

Screen type, either CRISPR or RNAi

cell_line_name

Cell line name

primary_disease

Cell line disease origin

lineage

Cell line lineage

lineage_subtype

Cell line lineage subtype, usually a malignancy

hover.string

String for hover text when plotting

Value

A dataframe containing DepMap 22Q1 expression data.

Source

https://depmap.org/portal/download/all/

https://bioconductor.org/packages/release/data/experiment/html/depmap.html


Parse gene summary data for easier plotting and display

Description

Parse gene summary data for easier plotting and display

Usage

gene_ingress(
  df,
  sig.thresh,
  es.thresh,
  es.col,
  sig.col,
  positive.ctrl.genes = NULL,
  essential.genes = NULL,
  depmap.genes = NULL
)

Arguments

df

data.frame of gene summary data. Gene IDs should be in the first column.

sig.thresh

Numeric scalar for significance threshold to consider a gene a hit.

es.thresh

Numeric scalar for absolute log fold change threshold to consider a gene a hit.

es.col

Character scalar for the column name of the effect size value.

sig.col

Character scalar for the column name of the significance value.

positive.ctrl.genes

Character vector of gene identifiers to label as positive controls.

essential.genes

Character vector of gene identifiers to label as essential genes.

depmap.genes

data.frame of DepMap gene summary data.

Value

A data.frame of gene summary with additional, easier to plot, columns added.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
d1.genes <- read.delim(system.file("extdata", "esc1.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
out.df <- gene_ingress(d1.genes, 0.05, 0.5, es.col = "LFC", sig.col = "fdr")

Get essential/selective gene information from DepMap summary table.

Description

Get essential/selective gene information from DepMap summary table.

Usage

get_depmap_essentiality(gene, depmap.summary)

Arguments

gene

Character scalar for gene symbol.

depmap.summary

data.frame containing DepMap gene summary information.

Value

Named list containing RNAi and CRISPR named lists containing dataset information for the provided gene, if available. If the gene is not found in the summary data.frame, the avail element for the RNAi and CRISPR lists will be set to FALSE.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
build_depmap_db(retrieve = "gene.summary")
pool <- pool::dbPool(RSQLite::SQLite(), dbname = "depmap_db.sqlite")
depmap.gene <- pool::dbGetQuery(pool, "SELECT * FROM 'gene.summary'")

essentials <- get_depmap_essentiality(gene = "CDK2", depmap.summary = depmap.gene)

Create DepMap dataframe for plotting

Description

Based on the requested data type, this function will create a dataframe from the DepMap database that can be used for plotting.

Usage

get_depmap_plot_data(gene, data.type, depmap.meta, depmap.pool)

Arguments

gene

Character scalar of gene name.

data.type

Character scalar of data type to retrieve. One of "dependency", "crispr", "rnai", "cn", or "ccle_tpm".

depmap.meta

data.frame of DepMap cell line metadata, as stored in the 'meta' table of the SQLite database built by build_depmap_db.

depmap.pool

pool connection to DepMap SQLite database built with build_depmap_db.

Value

data.frame containing appropriate DepMap data for plotting.

Author(s)

Jared Andrews

See Also

plot_depmap_lineages

Examples

## Not run: 
library(CRISPRball)
build_depmap_db(retrieve = c("meta", "crispr"))
pool <- pool::dbPool(RSQLite::SQLite(), dbname = "depmap_db.sqlite")
depmap.meta <- pool::dbGetQuery(pool, "SELECT * FROM 'meta'")

df <- get_depmap_plot_data(
    gene = "CDK2", data.type = "crispr",
    depmap.meta = depmap.meta, depmap.pool = pool
)

## End(Not run)

Create interactive bar plot

Description

Create an interactive bar plot for specific summary information for each sample in the dataset.

Usage

plot_bar(
  count.summary,
  x = "Label",
  y = "GiniIndex",
  title = "sgRNA Read Distribution",
  xlab = NULL,
  ylab = "Gini Index",
  fill = "#E69F00",
  yaxis.addition = 0.05
)

Arguments

count.summary

data.frame containing the count summary information for each sample.

x

Character scalar for column of count.summary to plot along the x-axis.

y

Character scalar for column of count.summary to plot along the y-axis.

title

Character scalar for title of the plot.

xlab

Character scalar for label of the x-axis.

ylab

Character scalar for label of the y-axis.

fill

Character scalar for bar fill color in hex.

yaxis.addition

Numeric scalar for additional space to add to the y-axis.

Value

An interactive bar chart showing the specified summary information for each sample. The axis and plot title are editable.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
count.summ <- read.delim(system.file("extdata", "escneg.countsummary.txt",
    package = "CRISPRball"
), check.names = FALSE)
# Gini Index plot
plot_bar(count.summ)

# Zero count sgRNAs plot
plot_bar(count.summ,
    x = "Label", y = "Zerocounts", title = "Fully Depleted sgRNAs",
    fill = "#394E80", ylab = "Zero Count sgRNAs", yaxis.addition = 10
)

Plot a Correlation Heatmap

Description

This function creates a heatmap using ComplexHeatmap to display the correlation values in a matrix. The color of each cell in the heatmap is determined by the corresponding correlation value, using a color ramp that ranges from the minimum value color to a maximum value color.

Usage

plot_correlation_heatmap(
  mat,
  min.color = "#FF0000",
  max.color = "#0000FF",
  legend.title = "Pearson Corr.",
  plot.title = "Correlation Matrix"
)

Arguments

mat

A matrix containing the correlation values.

min.color

Character scalar for the hexadecimal color code for the minimum values in the heatmap.

max.color

Character scalar for the hexadecimal color code for the maximum values in the heatmap.

legend.title

Character scalar for title of the legend.

plot.title

Character scalar for title of the plot.

Value

A Heatmap object.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
norm.counts <- read.delim(system.file("extdata", "escneg.count_normalized.txt",
    package = "CRISPRball"
), check.names = FALSE)
norm.counts <- as.matrix(norm.counts[, c(-1, -2)])
norm.counts.log <- log2(norm.counts + 1)
cor.mat <- cor(norm.counts.log)
plot_correlation_heatmap(cor.mat)

Plot gene copy number information from DepMap

Description

Plot gene copy number information from DepMap

Usage

plot_depmap_cn(df, color = "#CEA3CB", plot.grid = FALSE)

Arguments

df

data.frame containing information for a single gene as returned by get_depmap_plot_data.

color

Character scalar for trace color.

plot.grid

Boolean indicating whether to plot gridlines.

Value

plotly object

Author(s)

Jared Andrews

See Also

get_depmap_plot_data

Examples

library(CRISPRball)
data(depmap_22q1_cn)
plot_depmap_cn(depmap_22q1_cn)

Plot gene dependency information from DepMap CRISPR and RNAi tables

Description

Plot gene dependency information from DepMap CRISPR and RNAi tables

Usage

plot_depmap_dependency(
  df,
  crispr.color = "#3584B5",
  rnai.color = "#52288E",
  depline = TRUE,
  plot.grid = FALSE
)

Arguments

df

data.frame containing information for a single gene as returned by get_depmap_plot_data.

crispr.color

Character scalar for CRISPR trace color as hexcode.

rnai.color

Character scalar for RNAi trace color as hexcode.

depline

Boolean indicating whether to show the dependency threshold line.

plot.grid

Boolean indicating whether to plot gridlines.

Value

plotly object

Author(s)

Jared Andrews

See Also

get_depmap_plot_data

Examples

library(CRISPRball)
data(depmap_22q1_crispr_rnai)
plot_depmap_dependency(depmap_22q1_crispr_rnai)

Plot gene expression information from DepMap, mostly from CCLE

Description

Plot gene expression information from DepMap, mostly from CCLE

Usage

plot_depmap_expression(df, color = "#7B8CB2", plot.grid = FALSE)

Arguments

df

data.frame containing information for a single gene as returned by get_depmap_plot_data.

color

Character scalar for trace color.

plot.grid

Boolean indicating whether to plot gridlines.

Value

plotly object

Author(s)

Jared Andrews

See Also

get_depmap_plot_data

Examples

library(CRISPRball)
data(depmap_22q1_TPM)
plot_depmap_expression(depmap_22q1_TPM)

Plot selected information across lineages from DepMap.

Description

Plot selected information across lineages from DepMap.

Usage

plot_depmap_lineages(
  df,
  plot.val,
  group.by,
  lineage = NULL,
  depline = TRUE,
  label.size = 12,
  pt.size = 5,
  pt.color = "#56B4E9",
  boxplot.fill = "#E2E2E2",
  boxplot.line.color = "#000000"
)

Arguments

df

data.frame containing information for a single gene as returned by get_depmap_plot_data.

plot.val

Character scalar of column name to plot values from.

group.by

Character scalar of column name to group by.

lineage

Character scalar of lineage for which to plot sub-lineage data.

depline

Boolean indicating whether to show the dependency threshold line.

label.size

Numeric scaler for axis label size.

pt.size

Numeric scalar for point size.

pt.color

Character scalar for point color.

boxplot.fill

Character scalar for boxplot fill color.

boxplot.line.color

Character scalar for boxplot line color.

Value

plotly object

Author(s)

Jared Andrews

See Also

get_depmap_plot_data

Examples

library(CRISPRball)
data("depmap_22q1_rnai")
plot_depmap_lineages(df = depmap_22q1_rnai, plot.val = "dependency", group.by = "lineage")

Create a plotly plot from a distribution of values

Description

This function creates a plotly plot with the distribution of values for each column in the mat matrix, using different colors for each column. The legend will show the column names from mat, and the plot will have the title "Distribution of read counts".

Usage

plot_hist(
  mat,
  title = NULL,
  xlab = "Values",
  ylab = "Frequency",
  show.grid = FALSE
)

Arguments

mat

A matrix with the data to plot.

title

A character scalar for the title of the plot.

xlab

Character scalar for label of the x-axis.

ylab

Character scalar for label of the y-axis.

show.grid

A boolean for whether to show the grid lines.

Value

A plotly plot with the distribution of read counts.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
cts <- read.delim(system.file("extdata", "escneg.count_normalized.txt",
    package = "CRISPRball"
), check.names = FALSE)
cts.log <- as.matrix(log2(cts[, c(-1, -2)] + 1))
colnames(cts.log) <- colnames(cts)[c(-1, -2)]

plot_hist(cts.log,
    title = "Distribution of read counts",
    xlab = "log2(counts + 1)", ylab = "Frequency"
)

Create an interactive lawn plot

Description

Create an interactive lawn plot for data with significance values. Typically, this plot is randomly ordered along the x-axis, but the user is free to order it by any term in res that they'd like.

Usage

plot_lawn(
  res,
  ylim = 5,
  fc.thresh = 0.5,
  hover.info = NULL,
  sig.line = TRUE,
  h.id = "crispr",
  feat.term = "rows",
  x.term = "RandomIndex",
  sig.term = "fdr",
  lfc.term = "LFC",
  down.color = "#0026ff",
  up.color = "#ff0000",
  insig.color = "#A6A6A6",
  sig.thresh = 0.05,
  fs = NULL,
  sig.size = 6,
  insig.size = 5,
  sig.opacity = 1,
  insig.opacity = 0.5,
  label.size = 10,
  webgl = TRUE,
  webgl.ratio = 7,
  show.counts = TRUE,
  show.hl.counts = TRUE,
  counts.size = TRUE,
  highlight.featsets = NULL,
  highlight.feats = NULL,
  featsets = NULL,
  highlight.feats.color = "#E69F00",
  highlight.feats.size = 7,
  highlight.feats.opac = 1,
  highlight.feats.linecolor = "#000000",
  highlight.feats.linewidth = 1,
  highlight.feats.label = TRUE,
  highlight.featsets.color = "#009E73",
  highlight.featsets.size = 7,
  highlight.featsets.opac = 1,
  highlight.featsets.linecolor = "#000000",
  highlight.featsets.linewidth = 1,
  highlight.featsets.label = FALSE,
  h.id.suffix = "_lawn"
)

Arguments

res

Dataframe containing, at minimum, significance values and a term by which the x-axis can be ordered.

ylim

Positive numeric scalar indicating y-axis limits. The negative value will be used for the lower limit.

fc.thresh

Numeric scalar indicating the fold change threshold for coloring significant features.

hover.info

Character vector indicating which additional columns from res to include in the hover info.

sig.line

Logical indicating whether to add a significance threshold line to the plot.

h.id

Character scalar indicating the unique ID of the plotly object. Can usually be ignored, but should be used if multiple plots are being created in the same R session (e.g. Shiny app).

feat.term

Character scalar indicating the column name of the feature IDs in res.

x.term

Character scalar for the x-axis term from res to be plotted.

sig.term

Character scalar indicating the column name of the significance values in res.

lfc.term

Character scalar indicating the column name of the log fold change values in res.

down.color

Character scalar indicating the color of down-regulated features.

up.color

Character scalar indicating the color of up-regulated features.

insig.color

Character scalar indicating the color of insignificant features.

sig.thresh

Numeric scalar indicating the significance threshold for coloring significant features.

fs

Dataframe containing coordinates and label information for points that should be labeled. Columns should be:

  • x - x coordinate of the point

  • y - y coordinate of the point

  • customdata - label to be displayed

sig.size

Numeric scalar indicating the size of significant feature points.

insig.size

Numeric scalar indicating the size of insignificant feature points.

sig.opacity

Numeric scalar indicating the opacity of significant feature points.

insig.opacity

Numeric scalar indicating the opacity of insignificant feature points.

label.size

Numeric scalar indicating the size of feature labels.

webgl

Logical indicating whether to use WebGL for rendering the plot.

webgl.ratio

Numeric scalar indicating the ratio of WebGL to HTML5 canvas rendering, increases resolution of saved plot when WebGL plotting is not used.

show.counts

Logical indicating whether to show annotations for the number of features in the plot.

show.hl.counts

Logical indicating whether to show annotations for the number of highlighted features in the plot.

counts.size

Numeric scalar indicating the size of the feature counts labels.

highlight.featsets

Character vector indicating which feature sets should be highlighted.

highlight.feats

Character vector indicating which features should be highlighted.

featsets

Named list of feature sets to be used for highlighting.

highlight.feats.color

Character scalar indicating the color of highlighted features.

highlight.feats.size

Numeric scalar indicating the size of highlighted features.

highlight.feats.opac

Numeric scalar indicating the opacity of highlighted features.

highlight.feats.linecolor

Character scalar indicating the line color of highlighted features.

highlight.feats.linewidth

Numeric scalar indicating the line width of highlighted features.

highlight.feats.label

Logical indicating whether to label highlighted features.

highlight.featsets.color

Character scalar indicating the color of highlighted feature sets.

highlight.featsets.size

Numeric scalar indicating the point size of highlighted feature sets.

highlight.featsets.opac

Numeric scalar indicating the opacity of highlighted feature sets.

highlight.featsets.linecolor

Character scalar indicating the line color of highlighted feature sets.

highlight.featsets.linewidth

Numeric scalar indicating the line width of highlighted feature sets.

highlight.featsets.label

Logical indicating whether to label highlighted feature sets.

h.id.suffix

Character scalar indicating the suffix to be added to the plotly object ID.

Value

An interactive plotly rank plot.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
d1.genes <- read.delim(system.file("extdata", "esc1.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
plot.df <- gene_ingress(d1.genes,
    sig.thresh = 0.05, es.thresh = 0.5,
    es.col = "LFC", sig.col = "fdr"
)
plot_lawn(plot.df, feat.term = "id")

Plot a biplot from a PCAtools pca object

Description

This function plots a biplot from a PCAtools pca object.

Usage

plot_pca_biplot(
  pca.res,
  dim.x = "PC1",
  dim.y = "PC2",
  dim.z = NULL,
  plot.title = "PCA Biplot",
  color.by = NULL,
  shape.by = NULL,
  hover.info = NULL,
  show.loadings = FALSE,
  n.loadings = 3,
  pt.size = 12
)

Arguments

pca.res

A pca generated by the PCAtools package.

dim.x

Character scalar for the principal component to plot on the x-axis.

dim.y

Character scalar for the principal component to plot on the y-axis.

dim.z

Character scalar for the principal component to plot on the z-axis.

plot.title

Character scalar for the title of the plot.

color.by

Character scalar for the column name to use for coloring points.

shape.by

Character scalar for the column name to use for shaping points.

hover.info

Character vector of column name(s) to include in the hover info for each point.

show.loadings

Boolean indicating whether to show component loadings on the plot.

n.loadings

Integer for number of loadings to show.

pt.size

Numeric size of the plotted points.

Value

A plotly plot of the PCA biplot, or a text grob indicating no PCA was provided.

Author(s)

Jared Andrews

See Also

pca

Examples

library("PCAtools")
library("CRISPRball")
col <- 10
row <- 2000
mat <- matrix(
    rexp(col * row, rate = 0.1),
    ncol = col
)
rownames(mat) <- paste0("gene", seq_len(nrow(mat)))
colnames(mat) <- paste0("sample", seq_len(ncol(mat)))

metadata <- data.frame(row.names = colnames(mat))
metadata$Group <- rep(NA, ncol(mat))
metadata$Group[seq(1, 10, 2)] <- "A"
metadata$Group[seq(2, 10, 2)] <- "B"

p <- pca(mat, metadata = metadata, removeVar = 0.1)
plot_pca_biplot(p, color.by = "Group")

Create an interactive rank plot

Description

Create an interactive rank plot for data with fold change, significance terms, and rank.

Usage

plot_rank(
  res,
  ylim = c(-10, 10),
  y.thresh = 0.5,
  y.lines = TRUE,
  hover.info = NULL,
  h.id = "crispr",
  feat.term = "rows",
  sig.term = "fdr",
  rank.term = "LFC",
  rank.ascending = TRUE,
  down.color = "#0026ff",
  up.color = "#ff0000",
  insig.color = "#A6A6A6",
  sig.thresh = 0.05,
  fs = NULL,
  sig.size = 6,
  insig.size = 5,
  sig.opacity = 1,
  insig.opacity = 0.5,
  label.size = 10,
  webgl = TRUE,
  webgl.ratio = 7,
  show.counts = TRUE,
  show.hl.counts = TRUE,
  counts.size = TRUE,
  highlight.featsets = NULL,
  highlight.feats = NULL,
  featsets = NULL,
  highlight.feats.color = "#E69F00",
  highlight.feats.size = 7,
  highlight.feats.opac = 1,
  highlight.feats.linecolor = "#000000",
  highlight.feats.linewidth = 1,
  highlight.feats.label = TRUE,
  highlight.featsets.color = "#009E73",
  highlight.featsets.size = 7,
  highlight.featsets.opac = 1,
  highlight.featsets.linecolor = "#000000",
  highlight.featsets.linewidth = 1,
  highlight.featsets.label = FALSE,
  h.id.suffix = "_rank"
)

Arguments

res

Dataframe containing, at minimum, significance values and something to rank by (LFC, RRA score, betas, etc).

ylim

Numeric vector of length two for the y-axis limits.

y.thresh

Numeric scalar used as the y-axis threshold for point coloring. The negative of this value is also used as the threshold.

y.lines

Logical as for whether or not to show horizontal lines at y.thresh.

hover.info

Character vector indicating which additional columns from res to include in the hover info.

h.id

Character scalar indicating the unique ID of the plotly object. Can usually be ignored, but should be used if multiple plots are being created in the same R session (e.g. Shiny app).

feat.term

Character scalar indicating the column name of the feature IDs in res.

sig.term

Character scalar indicating the column name of the significance values in res.

rank.term

Character scalar for the term to rank by from res. This will be used as the y-axis.

rank.ascending

Boolean indicating whether or not the rank should be ascending.

down.color

Character scalar indicating the color of down-regulated features.

up.color

Character scalar indicating the color of up-regulated features.

insig.color

Character scalar indicating the color of insignificant features.

sig.thresh

Numeric scalar indicating the significance threshold for coloring significant features.

fs

Dataframe containing coordinates and label information for points that should be labeled. Columns should be:

  • x - x coordinate of the point

  • y - y coordinate of the point

  • customdata - label to be displayed

sig.size

Numeric scalar indicating the size of significant feature points.

insig.size

Numeric scalar indicating the size of insignificant feature points.

sig.opacity

Numeric scalar indicating the opacity of significant feature points.

insig.opacity

Numeric scalar indicating the opacity of insignificant feature points.

label.size

Numeric scalar indicating the size of feature labels.

webgl

Logical indicating whether to use WebGL for rendering the plot.

webgl.ratio

Numeric scalar indicating the ratio of WebGL to HTML5 canvas rendering, increases resolution of saved plot when WebGL plotting is not used.

show.counts

Logical indicating whether to show annotations for the number of features in the plot.

show.hl.counts

Logical indicating whether to show annotations for the number of highlighted features in the plot.

counts.size

Numeric scalar indicating the size of the feature counts labels.

highlight.featsets

Character vector indicating which feature sets should be highlighted.

highlight.feats

Character vector indicating which features should be highlighted.

featsets

Named list of feature sets to be used for highlighting.

highlight.feats.color

Character scalar indicating the color of highlighted features.

highlight.feats.size

Numeric scalar indicating the size of highlighted features.

highlight.feats.opac

Numeric scalar indicating the opacity of highlighted features.

highlight.feats.linecolor

Character scalar indicating the line color of highlighted features.

highlight.feats.linewidth

Numeric scalar indicating the line width of highlighted features.

highlight.feats.label

Logical indicating whether to label highlighted features.

highlight.featsets.color

Character scalar indicating the color of highlighted feature sets.

highlight.featsets.size

Numeric scalar indicating the point size of highlighted feature sets.

highlight.featsets.opac

Numeric scalar indicating the opacity of highlighted feature sets.

highlight.featsets.linecolor

Character scalar indicating the line color of highlighted feature sets.

highlight.featsets.linewidth

Numeric scalar indicating the line width of highlighted feature sets.

highlight.featsets.label

Logical indicating whether to label highlighted feature sets.

h.id.suffix

Character scalar indicating the suffix to be added to the plotly object ID.

Value

An interactive plotly rank plot.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
d1.genes <- read.delim(system.file("extdata", "esc1.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
plot.df <- gene_ingress(d1.genes,
    sig.thresh = 0.05, es.thresh = 0.5,
    es.col = "LFC", sig.col = "fdr"
)
plot_rank(plot.df, feat.term = "id")

Create an interactive volcano plot

Description

Create an interactive volcano plot for data with fold change and significance terms.

Usage

plot_volcano(
  res,
  xlim = 5,
  ylim = 5,
  fc.thresh = 0.5,
  fc.lines = TRUE,
  hover.info = NULL,
  sig.line = TRUE,
  h.id = "crispr",
  feat.term = "rows",
  sig.term = "fdr",
  lfc.term = "LFC",
  down.color = "#0026ff",
  up.color = "#ff0000",
  insig.color = "#A6A6A6",
  sig.thresh = 0.05,
  fs = NULL,
  sig.size = 6,
  insig.size = 5,
  sig.opacity = 1,
  insig.opacity = 0.5,
  label.size = 10,
  webgl = TRUE,
  webgl.ratio = 7,
  show.counts = TRUE,
  show.hl.counts = TRUE,
  counts.size = 8,
  highlight.featsets = NULL,
  highlight.feats = NULL,
  featsets = NULL,
  highlight.feats.color = "#E69F00",
  highlight.feats.size = 7,
  highlight.feats.opac = 1,
  highlight.feats.linecolor = "#000000",
  highlight.feats.linewidth = 1,
  highlight.feats.label = TRUE,
  highlight.featsets.color = "#009E73",
  highlight.featsets.size = 7,
  highlight.featsets.opac = 1,
  highlight.featsets.linecolor = "#000000",
  highlight.featsets.linewidth = 1,
  highlight.featsets.label = FALSE,
  h.id.suffix = "_volc"
)

Arguments

res

Dataframe containing, at minimum, fold change and significance values.

xlim

Positive numeric scalar indicating x-axis limits. The negative value will be used for the lower limit.

ylim

Positive numeric scalar indicating y-axis limits. The negative value will be used for the lower limit.

fc.thresh

Numeric scalar indicating the fold change threshold for coloring significant features.

fc.lines

Logical indicating whether to add fold change threshold lines to the plot.

hover.info

Character vector indicating which additional columns from res to include in the hover info.

sig.line

Logical indicating whether to add a significance threshold line to the plot.

h.id

Character scalar indicating the unique ID of the plotly object. Can usually be ignored, but should be used if multiple plots are being created in the same R session (e.g. Shiny app).

feat.term

Character scalar indicating the column name of the feature IDs in res.

sig.term

Character scalar indicating the column name of the significance values in res.

lfc.term

Character scalar indicating the column name of the log fold change values in res.

down.color

Character scalar indicating the color of down-regulated features.

up.color

Character scalar indicating the color of up-regulated features.

insig.color

Character scalar indicating the color of insignificant features.

sig.thresh

Numeric scalar indicating the significance threshold for coloring significant features.

fs

Dataframe containing coordinates and label information for points that should be labeled. Columns should be:

  • x - x coordinate of the point

  • y - y coordinate of the point

  • customdata - label to be displayed

sig.size

Numeric scalar indicating the size of significant feature points.

insig.size

Numeric scalar indicating the size of insignificant feature points.

sig.opacity

Numeric scalar indicating the opacity of significant feature points.

insig.opacity

Numeric scalar indicating the opacity of insignificant feature points.

label.size

Numeric scalar indicating the size of feature labels.

webgl

Logical indicating whether to use WebGL for rendering the plot.

webgl.ratio

Numeric scalar indicating the ratio of WebGL to HTML5 canvas rendering, increases resolution of saved plot when WebGL plotting is not used.

show.counts

Logical indicating whether to show annotations for the number of features in the plot.

show.hl.counts

Logical indicating whether to show annotations for the number of highlighted features in the plot.

counts.size

Numeric scalar indicating the size of the feature counts labels.

highlight.featsets

Character vector indicating which feature sets should be highlighted.

highlight.feats

Character vector indicating which features should be highlighted.

featsets

Named list of feature sets to be used for highlighting.

highlight.feats.color

Character scalar indicating the color of highlighted features.

highlight.feats.size

Numeric scalar indicating the size of highlighted features.

highlight.feats.opac

Numeric scalar indicating the opacity of highlighted features.

highlight.feats.linecolor

Character scalar indicating the line color of highlighted features.

highlight.feats.linewidth

Numeric scalar indicating the line width of highlighted features.

highlight.feats.label

Logical indicating whether to label highlighted features.

highlight.featsets.color

Character scalar indicating the color of highlighted feature sets.

highlight.featsets.size

Numeric scalar indicating the point size of highlighted feature sets.

highlight.featsets.opac

Numeric scalar indicating the opacity of highlighted feature sets.

highlight.featsets.linecolor

Character scalar indicating the line color of highlighted feature sets.

highlight.featsets.linewidth

Numeric scalar indicating the line width of highlighted feature sets.

highlight.featsets.label

Logical indicating whether to label highlighted feature sets.

h.id.suffix

Character scalar indicating the suffix to be added to the plotly object ID.

Value

An interactive plotly volcano plot.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
d1.genes <- read.delim(system.file("extdata", "esc1.gene_summary.txt",
    package = "CRISPRball"
), check.names = FALSE)
plot.df <- gene_ingress(d1.genes,
    sig.thresh = 0.05, es.thresh = 0.5,
    es.col = "LFC", sig.col = "fdr"
)
plot_volcano(plot.df, feat.term = "id")

Read and parse MAGeCK MLE output gene summary file

Description

This function reads the gene summary file output by mageck mle and parses it into a list of data.frames, one for each sample. The sample names are extracted from the column names of the input file and used as the names of the list elements.

Usage

read_mle_gene_summary(filepath)

Arguments

filepath

Path to the gene summary file output by mageck mle.

Value

A named list of data.frames containing MAGeCK MLE output, one for each sample contained in the file.

Author(s)

Jared Andrews

Examples

library(CRISPRball)
mle_gene_summary <- file.path(system.file("extdata", "beta_leukemia.gene_summary.txt",
    package = "CRISPRball"
))
gene_data <- read_mle_gene_summary(mle_gene_summary)