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24 lines
585 B
Plaintext
24 lines
585 B
Plaintext
9 months ago
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*! Principal component analysis based on polychoric correlations
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*! Author: Stas Kolenikov, skolenik@unc.edu. Version 1.0
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program define polychoricpca, rclass
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syntax varlist(numeric min=2) [aw pw fw /], [SCore(passthru) NSCore(passthru) nolog *]
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if "`score'"!="" & "`nscore'"=="" {
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di as err "how many score variables?"
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exit 198
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}
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if "`exp'"=="" {
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tempvar ww
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qui g byte `ww'=1
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local exp `ww'
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local weight pw
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}
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polychoric `varlist' [`weight'=`exp'] , pca nolog `score' `nscore' `options'
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return add
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end
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