st: Sorting matrix on a column

[Bert Jung <bjung59@gmail.com>]

Dear Statalisters,

I need to sort a matrix according to a specific column.  For example:

mat a = (  ( 4 \ 2 \ 3 \ 1 ) , ( 90 \ 95 \ 92 \ 96 )   )
mat list a

a[4,2]
    c1  c2
r1   4  90
r2   2  95
r3   3  92
r4   1  96


I would like to sort this matrix on the first column in decreasing order to get:

1	96
2	95
3	92
4	90

I realize that Mata's -sort(,)- may do this easily but don't have much
experience with Mata and prefer a "regular" Stata solution.

Thanks for any pointers,
Bert
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