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Mahalanobis distance

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Mahalanobis distance

Daniel Patón Domínguez
Dear all:

I am testing different distance measures and number of axis for count and binary data. I need to know the form of Mahalanobis distance for binary data if it is possible. I do not find this equation. I need similar expression to vegdist of vegan. Probably is only for quantitative data but I have not evidence of this.

Any idea

Thanks

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 Daniel Patón Domínguez
 Numerical Ecology. Ecology Unit
 Department of Plant Biology, Ecology and Earth Sciences
 Faculty of Sciences. University of Extremadura
 Avda. Elvas s/n 06071 Badajoz (Spain)
 http://unex.academia.edu/DanielPatonDominguez
 https://www.researchgate.net/profile/Daniel_Paton/
 http://sites.google.com/site/numericalecologyuex/home

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