Displaying 1 result from an estimated 1 matches for "n4390813".
2012 Feb 15
3
built a lower triangular matrix from dataframe
...ustrate the dataframe I have, I'll give you an example of a dataframe
and matrix with dimensions 6x6 (to make it shorter!)
My dataframe looks more or less like this (but longeeeer):
(i= number of row, j=number of column, k=value to be included in the matrix)
http://r.789695.n4.nabble.com/file/n4390813/df.png
An the matrix I should look like this:
http://r.789695.n4.nabble.com/file/n4390813/matrix.png
Can anyone help me about how to do it?
I'm a new R user, and I've tried several combinations of diag(),
lower.tri(), matrix(), etc. without any luck... and I don't know if I'm...