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eleetselad (1) [Avatar] Offline
Was initially unclear to me that ability.cov is found in datasets package.

Should be cov2cor() not cov2corr() function.

correlations <- cov2corr(covariances) should be correlations <- cov2cor(covariances)
robert.kabacoff (170) [Avatar] Offline
Re: pg. 376; 3rd paragraph
Thanks for pointing this out. I have made the corrections.