That book is out of print and hard to get. You should refer to later papers. The IND function is not necessarily robust. It's not rigorously derived, but is sort of empirical. mam On 6/21/2012 9:20 AM, Baker, Leslie wrote:
This is the factor indicator function. Its minimum can be used to indicate the correct number of meaningful factors.
There's an explanation here: http://www.vub.ac.be/fabi/multi/pcr/chaps/chap6.html
For more information, see Malinowski's book Factor Analysis in Chemistry.
-Leslie
-----Original Message-----
Hello,
does anyone know the meaning of the IND column in the PCA controll field of sixpack (version 0.63)?
I did not found a hint in the sixpack documentation.
Best regards Joerg
** Leslie L. Baker, Ph.D. Department of Plant, Soil and Entomological Sciences University of Idaho Moscow, ID 83844-2339 208-885-9239 http://scholar.google.com/citations?user=ejpH5p0AAAAJ
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