On Fri, 14 Oct 2016, David Winsemius wrote:
xyplot(amount ~ date | station, data=rain, main="Weather Stations", xlab="Date", ylab="Amount (inches)", pch=16, col=132, scales=list(y=list(at=0:4), x=list(at=seq(min(rain$date), max(rain$date), by='week'), rot=90) ) )
David, I searched ?xyplot for the 'by' option in scales and did not find it. I understand the other parameters of scales and would like to learn how to use 'by' when appropriate. TIA, Rich ______________________________________________ Rfirstname.lastname@example.org mailing list -- To UNSUBSCRIBE and more, see 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.