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Re: where function not finding value [message #90579 is a reply to message #90575]

Wed, 11 March 2015 09:24

Phillip Bitzer
Messages: 223
Registered: June 2006

Senior Member

Yes, this is all about floating point.

But, there's another issue that's worth noting: your test where statement is incorrect.

Histograms are inclusive on the low end.

Let's remove the floating point business, and look at an example:

x = [0, 3, 5, 10, 11, 20]
h=histogram(x, BINSIZE=5, MIN=0)
print, h
.... 2 1 2 0 1

We can use reverse indices and locations to see that, for example, 10 and 11 fall in the 10-15 bin. So, your where statement should look like what Craig has.

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[Message index]

		where function not finding value By: mboggsk9 on Thu, 03 April 2014 10:44
		Re: where function not finding value By: Mats Löfdahl on Thu, 03 April 2014 10:57
		Re: where function not finding value By: David Fanning on Thu, 03 April 2014 11:29
		Re: where function not finding value By: Phillip Bitzer on Thu, 03 April 2014 11:44
		Re: where function not finding value By: mboggsk9 on Thu, 03 April 2014 14:15
		Re: where function not finding value By: Jahvasc on Tue, 10 March 2015 11:12
		Re: where function not finding value By: David Fanning on Tue, 10 March 2015 11:42
		Re: where function not finding value By: Jahvasc on Tue, 10 March 2015 13:06
		Re: where function not finding value By: David Fanning on Tue, 10 March 2015 13:15
		Re: where function not finding value By: chris_torrence@NOSPAM on Tue, 10 March 2015 12:01
		Re: where function not finding value By: Jahvasc on Tue, 10 March 2015 13:15
		Re: where function not finding value By: Burch on Tue, 10 March 2015 13:19
		Re: where function not finding value By: chris_torrence@NOSPAM on Tue, 10 March 2015 19:34
		Re: where function not finding value By: Jahvasc on Wed, 11 March 2015 02:16
		Re: where function not finding value By: Craig Markwardt on Wed, 11 March 2015 07:06
		Re: where function not finding value By: Phillip Bitzer on Wed, 11 March 2015 09:24

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