[R] princomp

[Hoon Yoon - IPT Quant]

Peter,


  As I understand your Q. You probably have data that is similar to each other 
like stock Prices for all RHS variable. In that case the difference between corr 
and cov is not significant; however, if your RHS contains totally dissimilar 
variables it matters a great deal. If x1 income, x2 job type, x3 Education 
level, etc..., then taking cov of these variables would not be desireable and it 
should have different result from corr. BTW: Factor Anal is very similar.
  Hope this helps, (and right ;)
  

Hoon,

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