[R] Removing leading and trailing spaces (string manipulation)

[dsheuman@rogers.com]

Hi all,

I'm running the following code to generate 40 different jpegs based on the resulting data.  I'd like the file names to be 'Cluster1.jpeg', however the code write filenames like 'Cluster 1 .jpeg'.

How can I get rid of the unwanted spaces?  I've looked at ?format and it doesn't seem to work - at least in this context.


###################
ClusCount <- 40

datain <- as.data.frame( read.csv("c:\\daclus.csv"))

for(i in 1:ClusCount){
	mapit <- subset(datain, cluster == i)
	jpeg(file=paste("c:\\temp\\cluster",format(i),".jpeg"), width = 640, height = 480, pointsize = 12,quality = 300, bg = "white")
	plot( as.matrix(mapit[,2]), as.matrix(mapit[,3]),xlim=c(-141.6,-52.1),ylim=c(41.5,83.7),  type = "p", main = paste("Cluster",i) )
	dev.off()
}
###################


Thanks,

Danny