Panel plot of R2 values for pairs

Prints the R2 with text size depending on the size of R2

panel.r2(x, y, digits = 2, cex.cor, ...)

Arguments

x	a numeric vector of x values
y	a numeric vector of y values
digits	a numeric value giving the number of digits to present
cex.cor	scaling fator for the size of text
...	extra options (not used at the moment)

Details

This function is a slight modification of the panel.cor function defined on the pairs help page. It calculated and prints the squared correlation, R2, with text size depending on the proportion of explained variation.

References

Ekstrom, CT (2011) The R Primer.

Examples

pairs(~ Ozone + Temp + Wind + Solar.R, data=airquality,
      lower.panel=panel.smooth, upper.panel=panel.r2)