Hello,
I am plotting data as a venn diagram but would like to be able to control how
it is plotted like a lattice object.
Right now, it plots right away. I would like to name it and then plot at will.
I thought to convert the whole thing to a PostScript file then get it back into
R via grImport, but surely (please!) there must be a less roundabout way to do
this.
Any help is appreciated.
Here is my code:
# Wrapper function to draw Venn diagram
Venn2 <- function(set1, set2, names, title,...){
stopifnot( length(names) == 2)
# Form universe as union of both sets
universe <- sort( unique( c(set1, set2) ) )
Counts <- matrix(0, nrow=length(universe), ncol=2)
colnames(Counts) <- names
for (i in 1:length(universe)) {
Counts[i,1] <- universe[i] %in% set1
Counts[i,2] <- universe[i] %in% set2
}
vennDiagram( vennCounts(Counts),main=title,... )
}
# How I draw the Venn diagram
Venn2(cPostArrayHitsNames,cPreArrayHitsNames,names=c("Post","Pre"),title=PatientID)
Unfortunately something like this doesn't work:
VennPlot<-Venn2(cPostArrayHitsNames,cPreArrayHitsNames,names=c("Post","Pre"),title=PatientID)
Apologies for the imprecise terminology.
Thanks.
GLC
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