[R] Converting Matrix to List
smartpink111 at yahoo.com
Thu Jan 23 22:33:52 CET 2014
mat1 <- cbind(rep(1:8,c(2,4,3,6,8,4,3,10)),matrix(sample(200,40*10,replace=TRUE),nrow=40))
res <- split(as.data.frame(mat1[,-1]),as.matrix(mat1[,1]))
I have very large matrix of 2648 observations by 98 people in a
study. They are covariance matrices for certain variables stacked one
upon the other for the 98 participants, marked by a collumn indicating
subject number. I need to convert it to a list that includes 98 sub
covariance matrices, such that:
.. matrix for subject 1 ..
.. matrix for subject 2 ..
Can anyone please help me? I've searched online and I cant figure out how to do it
More information about the R-help