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Thanks for any suggestions.

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- Thread starter belliott4488
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- #1

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Thanks for any suggestions.

- #2

EnumaElish

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Is each shell also divided into discrete subregions? If so, that makes it a discrete problem and you can use the chi-square test: http://en.wikipedia.org/wiki/Chi-square_test

If you are looking at it as a continuous uniform distribution, then you cannot use categorical tests such as chi-squared, but may be able to use other tests.

- #3

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I'd like to know how valid this assumption is, however. Since I have a discrete set of vectors, then of necessity I would likely divide each shell into cells of equal volume in order to test the assumption. In that case, then I think I'm just asking how much variation there is in the number of objects per cell for a given radius.

In any case, since I posted my original question, I've gotten my hands on a book entitled, "Statistical Analysis of Spherical Data" by N. I. Fisher et. al. Hm. If the answer isn't in there, I'll eat my hat.

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