[Primer-E] PCA - no option for varimax rotation?

#1
Hi,

I am trying to figure out how to run a PCA on some behavioural data in Primer-E.

Just a little confused as in the manual there is no reference to choosing a type of rotation, which I understand is usually Varimax.

Am I missing something, or does Primer simply not use rotation?

Any help much appreciated.

Cheers
 

bugman

Super Moderator
#2
You are not missing anything.

There are no options for rotation and there is a good reason, but I'll need to get back to you tomorrow Im affraid. The specifics have slipped my mind right now.
 
#3
Hi bugman,

Thanks for your reply. Upon further reading I suspect Primer-E does Varimax rotation automatically (i.e. with no other options) - based on how it describes the process of PCA. Do you think this is correct?

Cheers