Re: [R] 10^x instead 10EX on plot axes. How?

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Tue 11 Jul 2006 - 03:00:38 EST

On 7/10/2006 12:43 PM, hulubu@gmx.de wrote:
> Hi,
>
> I'm drawing a very simple plot with both axes logarithmic (default base 10).
> Example:
> vec=c(1,10,100,1000,10000,100000,1000000,10000000)
> plot(vec,vec,log="xy")
>
> The axes on the plot now show the technical notation like 1E+3 but I would prefer to have it the notation 10 ^3 i.e. with the exponent here 3 superscript (raised).
> Any help very much appreciated!

You can use the plotmath functions for axis labels. For example,

 > vec=c(1,10,100,1000,10000,100000,1000000,10000000)
 > plot(vec,vec,log="xy", axes=F)
 > axis(1, at=10^c(0,2,4,6), labels=expression(1, 10^2, 10^4, 10^6))
 > axis(2, at=10^c(0,2,4,6), labels=expression(1, 10^2, 10^4, 10^6))
 > box()

Duncan Murdoch



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