On 05/17/2010 06:01 PM, Lorenzo Cattarino wrote:
Hi r-users,
I have a matrix B and a list of 3x3 matrices (mylist). I want to
calculate the quantiles in the list using each of the value of B as
probabilities.
The codes I wrote are:
B<- matrix (runif(12, 0, 1), 3, 4)
mylist<- lapply(mylist, function(x) {matrix (rnorm(9), 3, 3)})
for (i in 1:length(B))
{
quant<- lapply (mylist, quantile, probs=B[i])
}
But quant returned the quantiles calculated using only the last value
([3,3]) of the matrix B.
Hi Lorenzo,
This works for me:
B<-matrix (runif(12,0,1),3,4)
mylist<-list()
for(i in 1:3) mylist[[i]]<-matrix(rnorm(9),3,3)
myq<-list()
for(i in 1:3)myq[[i]]<-quantile(mylist[[i]],probs=B[i,])
Although looking at your example, I may have misunderstood what you want
the result to be.
Jim
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