Re: [R] scaling advice

2011-07-15 Thread Peter Langfelder
On Fri, Jul 15, 2011 at 2:05 PM, Data Analytics Corp. wrote: >  But then he apparently rescaled this 44x13 > matrix so that the rows all sum to zero and the columns all sum to zero. >  None of the row and column standard deviations are 1.0.  This I can't see > how to do.  How can I rescale the ro

Re: [R] scaling advice

2011-07-15 Thread peter dalgaard
On Jul 15, 2011, at 23:05 , Data Analytics Corp. wrote: > Hi, > > I have a consultants nightmare -- I was given a project that another > consultant did and I was told to do the same calculations, but there's no > documentation on what he did. Basically, I have yes/no answers to survey > ques

[R] scaling advice

2011-07-15 Thread Data Analytics Corp.
Hi, I have a consultants nightmare -- I was given a project that another consultant did and I was told to do the same calculations, but there's no documentation on what he did. Basically, I have yes/no answers to survey questions about the effectiveness of product attributes by brands. Ther