[R] Matrix for correlation

[Geophagus]

Hi Michael,
thank you so much for your fast reply.
On the image below there is an example of what I mean.
I need the correlation between the values on the fields with "?".

http://r.789695.n4.nabble.com/file/n4119734/corr_ex.png 

But my source data is not in a matrix. It looks like the table in my first
post.

Do you understand my problem?
Thanks a lot!
Geophagus



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