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Re: list manipulation [message #78801 is a reply to message #78800]

Sun, 18 December 2011 10:22

greg.addr
Messages: 160
Registered: May 2007

Senior Member

Thanks for that, Vincent (and the pedagogical device wasn't wasted on me!) This extract keyword is what I need, I think - except that it doesn't work the way I hoped in my case:

IDL> a=list()
IDL> a.add,[1,2,3]
IDL> a.add,2
IDL> a.add,[3,4,5]
IDL> b=list(a,/extract)
IDL> print,b
1 2 3
2
3 4 5

I thought - ok, it thinks that's just one element, so what if I add another:

IDL> b=list(a,[1],/extract)
IDL> print,b
1 2 3
2
3 4 5
1

Still no. How would you get [1,2,3,2,3,4,5] from a?

cheers,
Greg

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[Message index]

		Re: list manipulation By: d.poreh on Sun, 18 December 2011 10:46
		Re: list manipulation By: greg.addr on Sun, 18 December 2011 10:29
		Re: list manipulation By: greg.addr on Sun, 18 December 2011 10:22
		Re: list manipulation By: David Fanning on Sun, 18 December 2011 06:59
		Re: list manipulation By: d.poreh on Sun, 18 December 2011 04:43
		Re: list manipulation By: Vincent Sarago on Sun, 18 December 2011 04:33

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