[R] [Fwd: Re: Plotting log-axis with the exponential base to

[Mark Difford]

Hi All,

You can also add a line using lines() if you transform in the call using the
same log-base---but not via R's log="y" argument (because of what's stored
in par("yaxp")).

##
par(mfrow=c(1,3))
plot(1:10, log="y")
lines(log10(1:10))
par("yaxp")

plot(log10(1:10), yaxt="n")
axis(side=2, at=sapply(c(1,2,5,10), FUN=function(x) log10(x)),
labels=c(1,2,5,10))
lines(log10(1:10))
par("yaxp")

plot(log(1:10), yaxt="n")
axis(side=2, at=sapply(c(1,2,5,10), FUN=function(x) log(x)),
labels=c(1,2,5,10))
lines(log(1:10))
par("yaxp")

Regards, Mark.
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