R: Method to add an expression microarray dataset to...

add_genexp {MultiDataSet}

R Documentation

Method to add an expression microarray dataset to `MultiDataSet`.

Description

This method adds or overwrites the slot "expression" of an MultiDataSet with the content of the given ExpressionSet. The fData of the ExpressionSet must contain the columns chromosome, start and end.

Usage

add_genexp(object, gexpSet, ...)

Arguments

`object`	`MultiDataSet` that will be filled.
`gexpSet`	`ExpressionSet` to be used to fill the slot.
`...`	Arguments to be passed to `add_eset`.

Value

A new MultiDataSet with the slot "expression" filled.

Examples

multi <- createMultiDataSet()
eset <- new("ExpressionSet", exprs = matrix(runif(4), 2))
fData(eset) <- data.frame(chromosome = c("chr1", "chr2"), start = c(12414, 1234321),
 end = c(121241, 124124114), stringsAsFactors = FALSE)
multi <- add_genexp(multi, eset)