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  • PCA rotate with multiple imputed data

    I am conducting a principal components analysis using Stata 15.1. I used mi impute to fill in missing values. Then I run the PCA. The PCA run well without issues.

    As a follow up, I need to do rotation to provide clarity on component loadings. It appears that rotate does not work with mi estimate, even after using the cmdok option. I following this advice on using cmdok: https://www.stata.com/support/faqs/s.../cmdok-option/. I will appreciate help with this.

    Code:
    mi estimate, cmdok : pca  semanticwordfluency - storydelayrecalltest, vce(normal) comp(4)
    mi estimate, cmdok : rotate
    HTML Code:
    mi estimate, cmdok : rotate 
    pca estimation results not found
    last estimates not found
    an error occurred when mi estimate executed rotate on m=1
    r(301);



    Al Bothwell
    Last edited by Al Bothwell; 22 Jul 2020, 08:05.

  • #2
    I have the exact same problem right now. PCA worked fine, but rotate did not. Did you find a solution?

    Code:
    mi estimate, cmdok: pca stemcells synbio cellphones nuclear labmeat covidvax handguns GMO autos syncells planes fracking AI nano cloning climatechange, mineigen(1) blanks(.3) vce(normal)
    mi estimate, cmdok: rotate, varimax blanks(.3)
    HTML Code:
    . mi estimate, cmdok: rotate, varimax blanks(.3)
    pca estimation results not found
    last estimates not found
    an error occurred when mi estimate executed rotate on m=1
    r(301);
    Jason

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