subsetting {limma} | R Documentation |
Extract a subset of an RGList
or MAList
objects.
object[i, j]
object |
object of class RGList or MAList |
i,j |
elements to extract. i subsets the genes or spots while j subsets the arrays |
i,j
may take any values acceptable for the matrix components of object
.
See the Extract help entry for more details on subsetting matrices.
An RGList
or MAList
object holding data from the specified subset of genes and arrays.
Gordon Smyth
Extract
in the base package.
3.ReadingData gives an overview of data input and manipulation functions in LIMMA.
M <- A <- matrix(11:14,4,2) rownames(M) <- rownames(A) <- c("a","b","c","d") colnames(M) <- colnames(A) <- c("A","B") MA <- new("MAList",list(M=M,A=A)) MA[1:2,] MA[1:2,2] MA[,2]