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)

[Package MultiDataSet version 1.8.0 Index]