search for: hogenraad

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2006 Mar 13
0
Bootstrapping PCA + Standard Error Scree
Two questions about principal components analysis in R: Q.1) Hogenraad and McKenzie (1999) used Bruce Thompson's FACSTRAP program to bootstrap the factor loadings and scores in a principal components analysis. The input to the analysis was a word-word correlation matrix derived from a frequency count of x words across n texts. This is how they described their pr...