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Re: replacing blocks in an array with other array values? [message #78819 is a reply to message #78818]

Sun, 25 December 2011 15:43

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

On Dec 25, 7:11 pm, Ecaterina Coman <ecatc...@umbc.edu> wrote:
> hi guys,
> I have a 4*4 array, for example, and i want to replace the center 2*2
> block of an array with the values in another array
>
> lets say A is 4*4
> and B is 2*2
> I tried doing A[1:2,1:2]=B but it doesn't change anything in A

Really?

IDL> a=bindgen(4,4)
IDL> b=100+bindgen(2,2)
IDL> print,a
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
IDL> print,b
100 101
102 103
IDL> a[1:2,1:2]=b
IDL> print,a
0 1 2 3
4 100 101 7
8 102 103 11
12 13 14 15

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[Message index]

		Re: replacing blocks in an array with other array values? By: Ecaterina Coman on Sun, 25 December 2011 20:42
		Re: replacing blocks in an array with other array values? By: David Fanning on Sun, 25 December 2011 15:44
		Re: replacing blocks in an array with other array values? By: penteado on Sun, 25 December 2011 15:43

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