Hi. Maybe someone can shed some light on a question I'm trying to solve through all weekend.
I use princomp() to get a PCA components and then use these components to build a classification model. When I use new data with that model (data which I did not have when I did the original PCA), I have to aplly a PCA first and then use PCA components with my model. The problem is - I would like (actually, I think I have) to use an eigenbasis from the first PCA when I do a PCA on a new data. So the question is - how can I use the eigenbasis (loadings ??) from princomp() output as an argument to another princomp() when processig a new data. Thanks in advance. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
