In sci.stat.edu Radford Neal <[EMAIL PROTECTED]> wrote:
: You don't know what you are talking about. There are many, many : situations in which data is analysed when there are more variables : than observations. but if you know anything about statistics, you don't analyze them as variables but condense them based on your knowledge to many fewer variables than observations : The absurdity of saying you can't do anything with more variables than : observations is well illustrated by the case of spectroscopic data, : where the number of variables is just the number of frequencies (or : that you have to throw away the extra data from the better instrument : before analysing it. see above : PCA isn't necessarily the best way of analysing such data, but it : isn't senseless. It's senseless . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
