qsort

Is there a way to use qsort (or any other method really) but keep the
original indices? I need to be able to keep it for a "time" index so
that I can sort another corresponding dataset accordingly. I know this
is confusing, so I'll make up an example of what I mean.
Say I have:

[-4, 5, 3, -2, 1] which temporally corresponds to [7, 2, 1, 10, -3] and
I need the first one to be [-4, -2, 1, 3, 5] but I need the index so
that I can rearrange the second corresponding array to be [7, 10, -3, 1, 2]

Thank you!
Steph
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Received on Thu Nov 11 14:49:24 2010