Hi,
apart from the fact that I would like to improve the help text of the
pxsum() function (but really have to run now...), I just noticed that
pxsum() propagates missing values.
so
pxsum(y)
will give a different result from:
pxsum(misszero(y))
This is of course not a problem per se, but is in contrast to the sum()
and psum() functions and thus not what I expected. Also, for the
non-panel simple case there is a differentiation between sum() and sumall().
So I think it's not an optimal situation, but I'm not sure what the best
solution would be without breaking backward-compatibility too much.
thanks,
sven