Package: AffiXcan 1.31.0

Alessandro Lussana

AffiXcan: A Functional Approach To Impute Genetically Regulated Expression

Impute a GReX (Genetically Regulated Expression) for a set of genes in a sample of individuals, using a method based on the Total Binding Affinity (TBA). Statistical models to impute GReX can be trained with a training dataset where the real total expression values are known.

Authors:Alessandro Lussana [aut, cre]

AffiXcan_1.31.0.tar.gz
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AffiXcan_1.31.0.tgz(r-4.6-any)AffiXcan_1.31.0.tgz(r-4.5-any)
AffiXcan_1.31.0.tar.gz(r-4.7-any)AffiXcan_1.31.0.tar.gz(r-4.6-any)
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manual.pdf |manual.html✨
card.svg |card.png
AffiXcan/json (API)
NEWS

# Install 'AffiXcan' in R:

install.packages('AffiXcan', repos = c('https://bioc.r-universe.dev', 'https://cloud.r-project.org'))

Datasets:

exprMatrix - Expression data of two genes for 229 individuals
regionAssoc - Associations between regulatory regions and expressed genes
trainingCovariates - Covariates of the population structure for 229 individuals

On BioConductor:AffiXcan-1.31.0(bioc 3.24)AffiXcan-1.30.0(bioc 3.23)

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

geneexpression transcription generegulation dimensionreduction regression principalcomponent

4.00 score 512 downloads 15 exports 47 dependencies

Last updated from:993022c09a. Checks:1 WARNING, 7 NOTE, 2 OK. Indexed: yes.

Target	Result	Time
bioc-checks	WARNING	176
linux-devel-x86_64	NOTE	316
source / vignettes	OK	227
linux-release-x86_64	NOTE	287
macos-release-arm64	NOTE	159
macos-oldrel-arm64	NOTE	166
windows-devel	NOTE	333
windows-release	NOTE	291
windows-oldrel	NOTE	272
wasm-release	OK	132

Exports:affiXcanBs affiXcanGReX affiXcanImpute affiXcanPca affiXcanPcs affiXcanTrain assoc2list computeBs computeCorrelation computeExpr computePca computePcs computeRSquared overlookRegions subsetKFold

Dependencies:abind BH Biobase BiocBaseUtils BiocGenerics BiocParallel cli codetools cpp11 crayon DelayedArray dplyr formatR futile.logger futile.options generics GenomicRanges glue IRanges lambda.r lattice lifecycle magrittr Matrix MatrixGenerics matrixStats MultiAssayExperiment pillar pkgconfig purrr R6 rlang S4Arrays S4Vectors Seqinfo snow SparseArray stringi stringr SummarizedExperiment tibble tidyr tidyselect utf8 vctrs withr XVector

AffiXcan

Alessandro Lussana

Rendered fromAffiXcan.Rmdusingknitr::rmarkdownon Jun 09 2026.

Last update: 2019-10-13
Started: 2018-09-04

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
A functional approach to impute GReX	AffiXcan-package AffiXcan
Fit linear models and compute ANOVA p-values	affiXcanBs
Compute a GReX from variables and their coefficients for a set of genes	affiXcanGReX
Impute a GReX for each gene for which a model was generated	affiXcanImpute
Perform a PCA on each experiment found in MultiAssayExperiment objects	affiXcanPca
Compute PCs in MultiAssayExperiment objects using eigenvectors given by user	affiXcanPcs
Train the model needed to impute a GReX for each gene	affiXcanTrain
Reorganize associations table in a list	assoc2list
Fit a linear model to impute a GReX for a certain gene	computeBs
Compute R and R^2 on a particular row of two SummarizedExperiment assays	computeCorrelation
Compute the imputed GReX for a certain gene on a set of individuals	computeExpr
Perform a PCA on a matrix where columns are variables	computePca
Compute a matrix product between variables and eigenvectors	computePcs
Compute R and R^2 between rows of two SummarizedExperiment assays	computeRSquared
Expression data of two genes for 229 individuals	exprMatrix
Count the number of genomic regions on which the TBA was computed	overlookRegions
Associations between regulatory regions and expressed genes	regionAssoc
Split the numbers from 1 to n in k equally-sized lists	subsetKFold
Covariates of the population structure for 229 individuals	trainingCovariates