[R] plots of correlation matrices

["Dénes TÓTH"]

> Hi,
>
> One way to do that is this  (avoiding the use of a for loop):
>
>
> l.txt<- "id category attribute1 attribute2 attribute3 attribute4
> 661 SCHS 43.2 0 56.5 1
> 12202 SCHS 161.7 5.7 155 16
> 1182 SCHS 21.4 0 29 0
> 1356 SSS  8.8182 0.1818 10.6667 0.6667
> 1864 SCHS 443.7273 9.9091 537 46
> 12360 SOA 6.6364 0 10 0
> 3382 SOA 7.1667 0 26 0.5
> 1033 SOA 63.9231 1.5385 91.5 11.5
> 14742 SSS 4.3846 0 8 0
> 12760 SSS 425.0714 1.7857 297.5 3.5
> "
>
> dat.df <- read.table(textConnection(l.txt),  header=T, as.is = TRUE)
> closeAllConnections()
>
> dat.lt<-by(dat.df[,3:6], dat.df$category, cor)

I guess Gawesh is looking for ?layout or ?par:

par(mfrow=c(2,2))
lapply(dat.lt,corrplot)


> lapply(dat.lt,corrplot)
>
>
> Regards,
> Carlos Ortega
> www.qualityexcellence.es
>
> 2011/10/11 gj <gawesh at gmail.com>
>
>> Hi,
>>
>> I want to do a visualisation of a matrix plot made up of several plots
>> of
>> correlation matrices (using corrplot()). My data is in csv format.
>> Here's
>> an
>> example:
>>
>> id,category,attribute1,attribute2,attribute3,attribute4
>> 661,SCHS,43.2,0,56.5,1
>> 12202,SCHS,161.7,5.7,155,16
>> 1182,SCHS,21.4,0,29,0
>> 1356,SSS, 8.8182,0.1818,10.6667,0.6667
>> 1864,SCHS,443.7273,9.9091,537,46
>> 12360,SOA,6.6364,0,10,0
>> 3382,SOA,7.1667,0,26,0.5
>> 1033,SOA,63.9231,1.5385,91.5,11.5
>> 14742,SSS,4.3846,0,8,0
>> 12760,SSS,425.0714,1.7857,297.5,3.5
>>
>> I can get rid of the id. But I need the 'category' as a way of
>> distinguishing the various correlation matrices.
>> I can do a plot of the correlation matrix using corrplot() function in
>> the
>> corrplot package (ignoring the id and category). But what I need is a
>> matrix
>> of the plots of each correlation matrix based on the category, ie I have
>> three categories in the data, hence I will need three plots of the
>> correlation matrix  in one diagram (because the correlation matrix only
>> makes sense if they are distinguished by category).
>>
>> Any help?
>>
>> Regards
>> Gawesh
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>