Extract matrix size and store in a macro

[Dusan Petrovic]

Hello Statalisters,

Is there a command to extract the dimensions of a matrix, something like this :

local n_col=colnumb(my_mat)
display `n_col'

I've tried the help and internet, but did not find anything satisfying.

Thank you for your help

[Nick Cox]

This was asked here on 5 September: http://www.statalist.org/forums/foru...ns-of-a-matrix

help matrix leads to help matrix functions

If combining functions was what you missed, then consider

 
. matrix A = J(1,2,42) 

. local dim (`= rowsof(A)',`=colsof(A)') 

. di "`dim'" 
(1,2)

[Dusan Petrovic]

I missed it . Thanks a lot