Re: st: PCA

[Muhammad Ramzan <ramzan243@gmail.com>]

thanks Nick , for your help.

I have modified the code to get the eigenvector. can i save the values
of first eigen vector in excel.

sysuse auto,clear
pca  trunk weight length headroom displacement
mat eigenv = e(L)
mat li eigenv


                   Comp1       Comp2       Comp3       Comp4       Comp5
       trunk   .43335481   .36647998   -.7676352   .29135313   .06120126
      weight   .48420457  -.33293068   .07372254   -.2668877   .76028879
      length   .48630825  -.23721442  -.10501275  -.57452327  -.60508589
    headroom   .35873169   .76396311   .52237979  -.12092568   .01297203
displacement   .46104816  -.33902696   .34841479   .70652976  -.22785555


I want to save the first comp1 in Excel.

Thanks

On 18 January 2014 01:39, Nick Cox <njcoxstata@gmail.com> wrote:
> With some guesses on what Muhammad is asking here:
>
> Consider this code example and its results:
>
> sysuse auto
> pca  trunk weight length headroom displacement
> mat eigenv = e(Ev)
> mat li eigenv
> mat eigenv = e(Ev)'
> mat li eigenv
> svmat eigenv
> l eigenv1 in 1/5
>
> Nick
> njcoxstata@gmail.com
>
> Muhammad Ramzan
>
>> how to sun flowwing commands after PCA command.
>>
>> e(Ev)               1 x p matrix of eigenvalues (sorted)
>>       e(L)                p x f matrix of eigenvectors = components
>
> Muhammad Ramzan
>
>>> is there any way to save the eigenvector obtained form pca command.
> *
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> *   http://www.ats.ucla.edu/stat/stata/



-- 
Assalam-o-Alaikum







Muhammad Ramzan
Lecturer (Economics)
Pakistan Institute of Development Economics
Islamabad
*
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