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Re: help with WHERE( ) function [message #91795 is a reply to message #91794]

Thu, 27 August 2015 06:44

Yngvar Larsen
Messages: 134
Registered: January 2010

Senior Member

On Thursday, 27 August 2015 14:56:55 UTC+2, g.na...@gmail.com wrote:
> What you said it makes sense. Thanks Phillip, I didn't realize that this was happening.
>
> I want the indices where are not zero. So I cannot just sum up the counts.

Which indices should not be zero? You have 4 different masks.

x = mask1 ne 0
y = mask2 ne 0
z = mask3 ne 0
w = mask4 ne 0

Some possibilities:
*) All masks are 1 -> where(x AND y AND z AND w) ;apparently, you have no such pixels
*) At least one mask is 1 -> where(x OR y OR z OR w)
*) At least two masks are 1 -> where((x + y + z + w) ge 2)
*) Something else?

Which one do you want?

--
Yngvar

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[Message index]

		help with WHERE( ) function By: g.nacarts on Wed, 26 August 2015 09:14
		Re: help with WHERE( ) function By: Paul Van Delst[1] on Wed, 26 August 2015 09:42
		Re: help with WHERE( ) function By: g.nacarts on Wed, 26 August 2015 09:52
		Re: help with WHERE( ) function By: Paul Van Delst[1] on Wed, 26 August 2015 10:50
		Re: help with WHERE( ) function By: Phillip Bitzer on Wed, 26 August 2015 16:45
		Re: help with WHERE( ) function By: g.nacarts on Thu, 27 August 2015 05:56
		Re: help with WHERE( ) function By: Yngvar Larsen on Thu, 27 August 2015 06:44
		Re: help with WHERE( ) function By: karo03de on Sat, 29 August 2015 07:50

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