ExprData S4 class implementation in R

Description

This S4 class contains the expression data, it can be a MAList or DGEList. Important: Rownames are going to be used as gene identifiers, make sure that this IDs are the same used in your gene sets.

Examples

## Lets create a ExprData object from counts data (DGEList).
rnaData <- matrix(rnbinom(10000,mu=5,size=2),ncol=4);
rownames(rnaData) <- 1:nrow(rnaData); # It must have rownames (gene names).

## Now we can use rnaExprData as an ExprData object.
## Not run: 
rnaExprData <- DGEList(counts=rnaData); 

## End(Not run)

## Lets create a ExprData object from micro array data (MAList).
maData <- matrix(rnorm(10000),ncol=4);
rownames(maData) <- 1:nrow(maData); # It must have rownames (gene names).

## Now we can use maExprData as an ExprData object.
maExprData <- new("MAList",list(M=maData));