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Histogram Too Many Array Elements [message #67732]

Mon, 24 August 2009 15:40

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Folks,

When I am working with large images, and I want to
plot a histogram, there are occasions when Histogram
complains about "too many array elements". On the
current image I am working on, for example, I am
passing an array to Histogram that has 1,727,194
elements.

It is an odd sort of error. And it is not even clear
to me that this is too many elements per se. It almost
seems like the bin size plays a role, too.

In any case, does anyone know what, exactly, causes this
error to occur? It seems to me it occurs most often
when working with MODIS reflectance data where the data
values are between 0 and 1. If it really is "too many"
elements in the array, what would be the "just right"
number?

Cheers,

David
--
David Fanning, Ph.D.
Coyote's Guide to IDL Programming (www.dfanning.com)
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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		Histogram Too Many Array Elements By: David Fanning on Mon, 24 August 2009 15:40
		Re: Histogram Too Many Array Elements By: David Fanning on Tue, 25 August 2009 11:13

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