On 10/02/2012 02:50 PM, Leung Chen wrote:
How to run pie chart for each categorical variable in a dataset?
Hi Leung,
I depends upon your definition of "categorical". If a character variable
has 100 possible values, you won't get a very informative pie chart out
of it. Therefore I suggest the following function as a start:
pie_shopping<-function(x,maxval=5) {
xname<-deparse(substitute(x))
for(var in 1:length(x)) {
if(length(unique(x[,var])) <= maxval) {
png(paste(xname,var,".png",sep=""))
pie(table(x[,var]))
dev.off()
}
}
}
Jim
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