This document explains the functionalities available in the a4Classif package.
This package contains for classification of Affymetrix microarray
data, stored in an ExpressionSet
. This package integrates
within the Automated Affymetrix Array Analysis suite of packages.
## Loading required package: a4Core
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## a4Classif version 1.55.0
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To demonstrate the functionalities of the package, the
ALL
dataset is used. The genes are annotated thanks to the
addGeneInfo
utility function of the a4Preproc
package.
data(ALL, package = "ALL")
ALL <- addGeneInfo(ALL)
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## findMatches
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ALL$BTtype <- as.factor(substr(ALL$BT,0,1))
resultLasso <- lassoClass(object = ALL, groups = "BTtype")
plot(resultLasso,
label = TRUE,
main = "Lasso coefficients in relation to degree of penalization."
)