[R] Title for secondary y-axis (axis(4)) in barplot?

From: Rainer M KRug <RMK_at_krugs.de>
Date: Mon 15 May 2006 - 18:37:51 EST


I am using the following script to plot a barplot with a secondary axis in a bargplot for the line.
It works, but I would like to have a title for the secondary y-axis on the right hand side of the axis - is this possible?


RainFog <- read.csv ("Climate.csv", header = TRUE, as.is=TRUE) PP <- array(c(RainFog$Rain, RainFog$Fog), c(16,2)) M <- paste (RainFog$Month)
png(filename="RainFog.png", width=960)
barplot (t(PP), ylim=c(0,8),names.arg=M, space=0.3, ylab="precipitation in mm")

lines (seq(0.8,20.3, by=1.3), RainFog$Rel.Hum./10, type="o") axis (4, at=seq(0, 8, by=2), labels=seq (0, 80, by=20)) dev.off()

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