numeric operations w/ lists
On 8/9/05 12:21 PM, "Afshartous, David" <afshart at exchange.sba.miami.edu> wrote:
Hello all, X is a list of 20 lists, and each individual list has 65 elements. Y is a list of 65 elements. WANT: subtract Y from each of the 20 lists in X. Here's what I tried and the error messages:
X - rep(Y, 20)
See ?lapply. Something like:
NewX <- lapply(X,function(tmp) {tmp-Y})
Hope this helps.
Sean