Page 1 of 1
principal components - correlation matrix?
Posted: Tue Mar 02, 2010 6:09 pm
by chartwel
Hi, I'm using eviews 7 and am using a principal components analysis on time series, coded data. I have successfully extracted PCs using eviews, and have narrowed down the components that I want to use based on their eigenvalues. However, I want to get a correlation matrix of correlations between these new components and the original variables that were included - how can I do that in eviews? Basically, i have 21 variables of central bank independence that I've extracted 7 principal components from, and I want to see the correlation matrix between those 7 PCs and the original 21 variables. How can I do that?
Re: principal components - correlation matrix?
Posted: Wed Mar 03, 2010 10:08 am
by EViews Glenn
Create a group object with all 28 variables and compute the correlation for that group of series.
Re: principal components - correlation matrix?
Posted: Wed Mar 03, 2010 2:16 pm
by chartwel
ok, how do I get those 7 principle components in a usable form to be included in a group object though? Basically, I use the command after opening the 21 variables as a group to "view/principal components," input my specifications, and then it spits out the list of PCs. How do I get that output saved so that I can use it in a group object?
Cheers,
Chris
Re: principal components - correlation matrix?
Posted: Wed Mar 03, 2010 4:01 pm
by EViews Glenn
I had thought you had already made the PC scores. Go to Proc/Make Principal Components... in the original group menu.