Hi all!

I have a vector, let's say for example int <- sample(1:20,10);
for now:

now I have a matrix...
M = m x n
where the first column is a "feature" column and most likely shares at least
one of the int (interesting) numbers.

I want to extract the rows where int[] = M[,1]

I thought:
rownames(int)<-int;
rownames(M)<-M[,1];

M[rownames(int),] would work, but it doesn't... (I assume because I have
rownames(int) that are not found in M[,1]. Neither does,
rownames(M)==rownames(int)...

Any help would be greatly appreciated!

Thank you!

	[[alternative HTML version deleted]]

