help mata mm_isconstant()
-------------------------------------------------------------------------------

Title

    mm_isconstant() -- Whether matrix is constant


Syntax

        real scalar mm_isconstant(X)


Description

    mm_isconstant() returns 1 if all elements in X are equal and returns 0
    otherwise.


Remarks

    None.


Diagnostics

    mm_isconstant() returns 1 if X is void.


Source code

    mm_isconstant.mata


Author

    Ben Jann, ETH Zurich, jann@soz.gess.ethz.ch


Also see

    Online:  help for [M-4] utility, moremata