MATLAB Application Program Interface Reference | Help Desk |
mxSetN
Set the number of columns
subroutine mxSetN(pm, n) integer*4 pm, npm n
The desired number of columns.
CallmxSetN
to set the number of columns in the specified mxArray
.
You typically use mxSetN
to change the shape of an existing mxArray
. Note that mxSetN
does not allocate or deallocate any space for the pr
, pi
, ir
, or jc
arrays. Consequently, if your calls to mxSetN
and mxSetM
increase the number of elements in the mxArray
, then you must enlarge the pr
, pi
, ir
, and/or jc
arrays.
If your calls to mxSetM
and mxSetN
end up reducing the number of elements in the mxArray
, then you may want to reduce the size of the pr
, pi
, ir
, or jc
arrays in order to reduce heap space usage. However, reducing the size is not mandatory.
mxGetM
, mxGetN
, mxSetM