Convert a matrix to a 1 dimensional array

Question

I have a matrix (32X48).

How can I convert the matrix into a single dimensional array?

Answer 1

If we're talking about data.frame, then you should ask yourself are the variables of the same type? If that's the case, you can use rapply, or unlist, since data.frames are lists, deep down in their souls...

 data(mtcars)
 unlist(mtcars)
 rapply(mtcars, c) # completely stupid and pointless, and slower