Replace negative values in matrix with zero

[Emily Oster]

Hi All,
I have what I think is a very simple question. I would like to replace all the negative values of a matrix with zero. In Matlab this would be straightforward but I cannot figure out how to do it in Mata. Can anyone help?
Thanks!

[Nick Cox]

One way to do it

: y = (-2, -1 \ 1, 2)

: (y :>= 0) :* y
       1   2
    +---------+
  1 |  0   0  |
  2 |  1   2  |
    +---------+

[Emily Oster]

Oh fantastic. I should have thought of this. Thanks Nick!