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Graphics Toolbox for Assessment of Affymetrix Expression Measures

Bioconductor version: Release (3.19)

The package contains functions that can be used to compare expression measures for Affymetrix Oligonucleotide Arrays.

Author: Rafael A. Irizarry <rafa at> and Zhijin Wu <zwu at> with contributions from Simon Cawley <simon_cawley at>

Maintainer: Robert D. Shear <rshear at>

Citation (from within R, enter citation("affycomp")):


To install this package, start R (version "4.4") and enter:

if (!require("BiocManager", quietly = TRUE))


For older versions of R, please refer to the appropriate Bioconductor release.


To view documentation for the version of this package installed in your system, start R and enter:

affycomp primer PDF R Script
Reference Manual PDF


biocViews Microarray, OneChannel, Preprocessing, Software
Version 1.80.0
In Bioconductor since BioC 1.6 (R-2.1) or earlier (> 19 years)
License GPL (>= 2)
Depends R (>= 2.13.0), methods, Biobase(>= 2.3.3)
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Suggests splines, affycompData
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Follow Installation instructions to use this package in your R session.

Source Package affycomp_1.80.0.tar.gz
Windows Binary (64-bit only)
macOS Binary (x86_64) affycomp_1.80.0.tgz
macOS Binary (arm64) affycomp_1.80.0.tgz
Source Repository git clone
Source Repository (Developer Access) git clone
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