[R] list element to matrix

[dverzi at mail.sdsu.edu]

I have created a list of "matrices" using sapply or lapply and wish to extract each of the "matrices" as a matrix.  Some of them are 2x2, 3x3, etc.

I can do this one at a time as:

M1<-as.matrix(D[[1]])

How can repeat this process for an unknown number of entries in the list?  In other words, how shall I index M1?

Diana