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Summer "English" heat or just me: Array slicing [message #85299]

Tue, 23 July 2013 08:51

ameigs
Messages: 12
Registered: March 2009

Junior Member

I'm betting this is too easy, but having been away from my work computer for several weeks I think dementia has set in:

Here's a simple array:
IDL> a = [[1,2,3,4,5,6],[7,8,9,10,11,12]]
IDL> help, a
A INT = Array[6, 2]
IDL> print, a
1 2 3 4 5 6
7 8 9 10 11 12

I want to get just the indices of dim 0 and dim 1 I need from a list of indices. So I tried this:
IDL> print, a[[0,3,5],[0]]
% All array subscripts must be same size. Var = A

But this works
IDL> print, a[[0,3,5],0]
1 4 6
IDL> print, a[[0,3,5],1]
7 10 12
IDL>
IDL> print, a[[0,3,5],0:1]
1 4 6
7 10 12
IDL>
And this does not:
IDL> print, a[[0,3,5],[0,1]]
% All array subscripts must be same size. Var = A
% Execution halted at: $MAIN$

What have I forgotten?

Andy

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[Message index]

		Summer "English" heat or just me: Array slicing By: ameigs on Tue, 23 July 2013 08:51
		Re: Summer "English" heat or just me: Array slicing By: Fabzi on Tue, 23 July 2013 09:12
		Re: Summer "English" heat or just me: Array slicing By: Lajos Foldy on Tue, 23 July 2013 09:16
		Re: Summer "English" heat or just me: Array slicing By: Phillip Bitzer on Tue, 23 July 2013 09:45
		Re: Summer "English" heat or just me: Array slicing By: Fabzi on Wed, 24 July 2013 06:44
		Re: Summer "English" heat or just me: Array slicing By: David Fanning on Wed, 24 July 2013 06:46
		Re: Summer "English" heat or just me: Array slicing By: Fabzi on Wed, 24 July 2013 06:57
		Re: Summer "English" heat or just me: Array slicing By: David Fanning on Wed, 24 July 2013 07:19
		Re: Summer "English" heat or just me: Array slicing By: Fabzi on Wed, 24 July 2013 07:25
		Re: Summer "English" heat or just me: Array slicing By: David Fanning on Wed, 24 July 2013 07:30

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