External Interfaces Reference |
Set number of columns of mxArray
Fortran Syntax
Arguments
n
The desired number of columns.
Description
Call mxSetN
to set the number of columns in the specified mxArray
. Call mxSetM
to set the number of rows 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 sizes of the pr
, pi
, ir
, and/or jc
arrays in order to use heap space more efficiently. However, reducing the size is not mandatory.
See Also
mxSetM | mxSetName (Obsolete) |
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