Re: Repeated measures analysis of fractions summing to a constant

Posted by Zuluaga, Juan on Apr 06, 2013; 2:41am
URL: http://spssx-discussion.165.s1.nabble.com/Repeated-measures-analysis-of-fractions-summing-to-a-constant-tp5719257p5719294.html

'For example, the DV might be "how do you spend your typical day?" question
Work __% of time
Meals__% of time
...
[Please check that your answers sum to 100%]'

Isn't this what Correspondence Analysis is for?
http://sru.soc.surrey.ac.uk/SRU7.html
A related approach:
http://igitur-archive.library.uu.nl/fss/2007-1004-201532/heijden_van_der_88_the_analysis.pdf

Ecologists have that kind of data very often, when they compare transects (what percentage of plants sampled are of what species, etc). Check Legendre & Legendre's  Numerical Ecology.

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