Re: [Gretl-users] Principal Components
Hi,
I did some test, since I am learning too :). It seems that is not
possible to save the PC vars from GUI. But from command we have
options: --save and --save-all. Just do a help pca ;).
Here is my test:
<script>
open /usr/local/share/gretl/data/greene/greene14_1.gdt
pca Q PF LF C --save-all
index = PC1 + PC2 + PC3 + PC4
print index
gnuplot index --with-lines --time-series
</script>
Bye,
Hélio
On Fri, Jan 22, 2010 at 8:33 PM, Henrique <henrique.coelho(a)gmail.com> wrote:
Dear Gretl community,
I want to create a index using five variables using gretl's principal
components analysis and I would like to know if I'm doing it properly. I'll
describe my steps:
Step 1: Compute principal components (Main window, View -> Principal
components);
Step 2: Save all components (PC1, ..., PC5);
Step 3: index = PC1 + ... + PC5.
I know this is a silly little question, but I have no background in this
kind of stuff :(
Best,
Henrique
Enviado de meu iPhone
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