Hi Add
sapply(any.data.frame, jitter) into your function. Either sapply(na.omit(.....), jitter) or pairs(sapply(..., jitter), ...) Regards Petr [EMAIL PROTECTED] [EMAIL PROTECTED] napsal dne 25.02.2008 00:26:27: > Hi, > > I am just starting to use R for a graduate course, and I like how the > correlation matrix at > http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=137 > > I did something similar by copying from the examples(pairs), but it > seems that I need to jitter the bottom panel... and I have no idea how > to do that, and I mean no idea at all. I'd appreciate any help... > > Here are the graphs: > http://socy602.pbwiki.com/f/dep_correlationmatrix.jpeg > http://socy602.pbwiki.com/f/indep_correlationmatrix.jpeg > > And this is the code I used to produce the graphs (not that I > understand it, but): > > ###################### > # Primary Component Analyses > ###################### > > ###################### > # Dependent variables > ###################### > > # List of these variables: > # langfamr , ethdifxx , catness , gc7 , gc8r , gc12 , culdifxx , poldifxx , ecdifxx > ###################### > # Look at correlation matrix for these > cor(MAR[,c("langfamr" , "ethdifxx" , "catness" , "gc7" , "gc8r" , "gc12" , > "culdifxx" , "poldifxx" , "ecdifxx" )], use="complete.obs") > # Big time correlation matrix > panel.cor <- function(x, y, digits=2, prefix="", cex.cor) > { > usr <- par("usr"); on.exit(par(usr)) > par(usr = c(0, 1, 0, 1)) > r <- abs(cor(x, y)) > txt <- format(c(r, 0.123456789), digits=digits)[1] > txt <- paste(prefix, txt, sep="") > if(missing(cex.cor)) cex <- 0.8/strwidth(txt) > text(0.5, 0.5, txt, cex = cex * r) > } > MAR.omitdep <- na.omit(MAR[,c("langfamr" , "ethdifxx" , "catness" , "gc7" , > "gc8r" , "gc12" , "culdifxx" , "poldifxx" , "ecdifxx" )]) > pairs(MAR.omitdep[,c("langfamr" , "ethdifxx" , "catness" , "gc7" , "gc8r" , > "gc12" , "culdifxx" , "poldifxx" , "ecdifxx" )], lower.panel=panel.smooth, > upper.panel=panel.cor) > # Save it > dev.copy(jpeg,filename="dep_correlationmatrix.jpeg",height=600, width=800,bg="white") > dev.off() > > ###################### > # Independent variables > ###################### > > # List of variables > # poldis , polres , ecdis , culres , gcc1 > ###################### > # Look at the correlation matrix > cor(MAR[,c("poldis" , "polres" , "ecdis" , "culres" , "gcc1" )], use="complete.obs") > # Big time correlation matrix > panel.cor <- function(x, y, digits=2, prefix="", cex.cor) > { > usr <- par("usr"); on.exit(par(usr)) > par(usr = c(0, 1, 0, 1)) > r <- abs(cor(x, y)) > txt <- format(c(r, 0.123456789), digits=digits)[1] > txt <- paste(prefix, txt, sep="") > if(missing(cex.cor)) cex <- 0.8/strwidth(txt) > text(0.5, 0.5, txt, cex = cex * r) > } > MAR.omitindep <- na.omit(MAR[,c("poldis" , "polres" , "ecdis" , "culres" , "gcc1" )]) > pairs(MAR.omitindep[,c("poldis" , "polres" , "ecdis" , "culres" , "gcc1" )], > lower.panel=panel.smooth, upper.panel=panel.cor) > # Save it > dev.copy(jpeg,filename="indep_correlationmatrix.jpeg",height=600, width=800,bg="white") > dev.off() > > Thanks a lot in advance, > Sincerely, > Mehmet. > > ______________________________________________ > 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. ______________________________________________ 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.