[R] Correlation Matrix

Vito Ricci vito_ricci at yahoo.com
Fri Oct 8 13:29:35 CEST 2004


I'm dealing with a datamining analysis: I've a lot of
categories of product sold per week (n. week =26, n.
categories about 50.
my dataframe is like this:

1          1                3                 19
2          2                2                  0
3          3                1                 22
4          4                2                  6

I computed correlation coefficents among categories
having a correlation matrix (53X53). Now I will
extract from this matrix only significative
correlations, or, in alternative correlations >0.5 and
<-0.5, excluding  the other, and put this coefficients
in a dataframe.

I'm looking for significative correlations among

Is someone could help me? Many thanks in advance.
Is also someone using R for dataminig analysis like


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