[R] Normalization and missing values

From: Chris Bergstresser <chris_at_subtlety.com>
Date: Thu 14 Apr 2005 - 02:36:35 EST

Hi all --

    I've got a large dataset which consists of a bunch of different scales, and I'm preparing to perform a cluster analysis. I need to normalize the data so I can calculate the difference matrix.

    First, I didn't see a function in R which does normalization -- did I miss it? What's the best way to do it?

    Second, what's the best way to deal with missing values? Obviously, I could just set them to 0 (the mean of the normalized scales), but I'm not sure that's the best way.


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