| subsetting {snapCGH} | R Documentation |
Extract a subset of an SegList object.
object[i, j]
object |
object of class SegList |
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 object of the same class as object holding data from the specified subset of genes and arrays.
Gordon Smyth, modified by Mike Smith for SegList object
Extract in the base package.
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]