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Array element deletion [message #36389]

Fri, 12 September 2003 06:17

Edd Edmondson
Messages: 50
Registered: January 2003

Member

Supposing I have a big array and I also have an array containing indices
of unwanted elements. Is there a neat way of removing those elements from
the array?

Attempts using WHERE() have failed for me* and currently I'm looping
through the array of indices and deleting them one at a time - which is
fine when I've only got 20 or 30 of them but I doubt it'll scale well.

* - I tried to make a list of indices that I wanted to keep using
WHERE(indgen(x) ne unwanted) but that only produces the first
n_elements(unwanted) of the correct indices.

--
Edd

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