Created
March 25, 2013 16:34
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panelcorr
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| ############################################################################## | |
| # Panel with correlations for paired variables. | |
| # Pedro Jordano. Zahara 9 Aug 2009. | |
| ############################################################################## | |
| data(data) | |
| 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) | |
| } | |
| pairs(data[1:4], lower.panel=panel.smooth, | |
| upper.panel=panel.cor) | |
| par(oma=c(1,1,1,1),new=T,font=2,cex=0.5) | |
| mtext(outer=T,"Paired plots with correlations",side=3) | |
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