Extracting Principal Components via code

[saranya]

Hi,

I use the below code to get the principal components which satisfy the condition of min eigen to not fall below 1:
freeze(tab) all.pcomp(cov=cov, mineigen=1, eigval=eval, eigvec=evec)

Now, I want the code to determine how many principal components are extracted with this criterion. Is there a way to do it via code, rather than analysing the table per se?

[EViews Gareth]

Can't you just test the length of the eval vector?
!num = @rows(eval)

[saranya]

The length of the eval vector is always equal to the total number of variables/ Principal components. It is not dependent on the cumulative proportion that one mentions in the code. :(

[EViews Glenn]

Code: Select all

!numge1 = @ege(eval, @ones(eval.@rows))

[saranya]

Thanks Glenn! Works perfect :)