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st: polychoric for huge data sets
From
Timea Partos <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: polychoric for huge data sets
Date
Wed, 5 Sep 2012 02:37:56 +0000
Hello all,
I need to run a factor analysis on ordinal data. My dataset is huge (7000+ cases with 40+ variables) so I can't run the polychoric.do program written by Stas Kolenikov, because it just can't handle it.
Does anyone know of a fast way to obtain the polychoric correlation matrix for very large data sets?
Alternatively, I was thinking of running the factor analysis using the Spearman rho (rank-order correlations) matrix instead. Would this be appropriate?
Thanks in advance,
-Timea
Ms. Timea Partos
Research Officer
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