On Fri, 2009-11-20 at 17:40 -0800, Santosh wrote: > Dear Rxperts! > > I was wondering if it is possible to write a function which can take in > argument of a subset or condition.. Of course, I am aware of the alternate > methods like coplot, par.plot, xyplot etc... I am specifically interested in > using conditions/subsets with "plot".. > > A simple fragmented example is shown here.. > > pltit <- function(y,x,dat,dat1,dat2,sbst) { > plot(y~x, data=dat, subset=sbst) > lines(y~x,data=dat1, subset=subst) > points(y~x,data=dat2,subset=subst) > } > > pltit(profit,weeks,dat=zone1, sbst='group==1&sales>200') > > Could you also suggest pointers/references/examples on efficient ways to > plot simulated data overlaid with observed data? > > Have a good weekend!
Hi Santosh, IMHO your script is pltit <- function(y,x,dat,dat1,dat2,sbst) { subs <- subset(dat,sbst) with(subs,plot(y~x)) subs1 <- subset(dat1,sbst) with(subs1,lines(y~x)) subs2 <- subset(dat2,sbst) with(subs2,points(y~x)) } -- Bernardo Rangel Tura, M.D,MPH,Ph.D National Institute of Cardiology Brazil ______________________________________________ R-help@r-project.org mailing list 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.