Re: [R] Matrix operations please help

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Mon 31 Oct 2005 - 18:05:27 EST

See ?reshape

Uwe Ligges

Srinivas Iyyer wrote:
> Dear Group,
>
> I have a matrix (157 X 157 ) with correlation values.
> I want to convert the unique elements into a long list
> so that I can add an extra variable and plot them.
>
> Example:
>
> A B C D
>
> alfa 1 0.3 0.8 -0.3
>
> beta 0.2 1 -0.3 0.4
>
> echo 0.9 -0.3 1 0.5
>
> tang -0.5 0.5 0.4 1
>
>
> I want to convert into this form:
>
>
> alfa A 1
> alfa B 0.3
> alfa C 0.8
> alfa D -0.3
> beta A 0.2
> beta B 1
> beta C -0.3
> beta D 0.4
> .......
>
> and so on.
>
>
> I will add another variable afterwards:
> var1 var2 corr var3
> alfa A 1 grp1
> alfa B 0.3 grp1
> alfa C 0.8 grp2
> alfa D -0.3 grp3
> beta A 0.2 grp3
> beta B 1 grp2
> beta C -0.3 grp1
> beta D 0.4 grp2
> ........ and so on....
>
>
> I am sure there should be a way.. but I am completely
> clueless..
> Can any one help me please.
>
> thanks
> srini
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon Oct 31 18:15:24 2005

This archive was generated by hypermail 2.1.8 : Mon 31 Oct 2005 - 21:14:33 EST