Sergey Goriatchev wrote:
> Hello,
>
> Let me describe what I have and what I want to do:
>
> I have two (7x6) matrices (call them A and B) that have same row and
> column names (rows=species, columns=variables) but contain numerical
> values that differ (same experiment done twice and values calculated
> and put in different matrices).
> ...
> But this is not very effective. What I want to do is to combine the
> two similar barplots for each experiment into one. So, for each
> species I create just one barplot where I plot 6 clusters each
> consisting of 2 bars, one bar for same varibale but different
> experiment. I want to put the values as text at the top of each bar
> and below each cluster I want to put the name of the variable (they
> are the same for each experiment, remember).
>
Hi Sergey,
See if this does what you want:
library(plotrix)
mat1<-matrix(rnorm(42,3),nrow=7)
mat2<-matrix(rnorm(42,3),nrow=7)
colnames(mat1)<-colnames(mat2)<-
c("First","Second","Third","Fourth","Fifth","Sixth")
rownames(mat1)<-rownames(mat2)<-
c("Fextus decrepitans","Gryphon laxus",
"Domus flaccidus","Cogitans prostrata","Osmia putrescens",
"Aria excruciata","Pestis ubiquitus")
maintitle<-paste("Plot of",rownames(mat1)[1])
barp(rbind(mat1[1,],mat2[1,]),names.arg=colnames(mat1),
col=c(2,3),main=maintitle,ylim=c(0,6))
text(1:6-0.2,mat1[1,]+0.3,round(mat1[1,],2),srt=90)
text(1:6+0.2,mat2[1,]+0.3,round(mat2[1,],2),srt=90)
...
Jim
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