[R] Odp: 2 plots with different scales in the same graphical window
petr.pikal at precheza.cz
Thu Dec 9 16:42:51 CET 2010
r-help-bounces at r-project.org napsal dne 09.12.2010 16:25:06:
> Dear useRs,
> I have two sets of data that I would like to plot in the same window,
> ranges are really different, e.g.
> a <- c(0.2, 0.5, 0.8, 0.3, 0.4, 0.5, 0.2, 0.2, 0.3)
> b <- c(100, 2000, 800, 200, 100, 50, 4, 2, 0)
> If I do
> plot(a, ty='l'); points(b, ty='l')
> I won't be able to see sequence b.
> However, if I do
> plot(b, ty='l'); points(a, ty='l')
> I won't be able to see the patterns in sequence a.
> So is there a way of plotting sequence a and b without applying log or
> anything, but sequence a would be correspondent to the left y-axis and
> b correspondent to the right y-axis?
See twoord.plot from plotrix.
Or search archuves for a function plot.yy (I posted it few years ago).
> Thanks in advance,
> [[alternative HTML version deleted]]
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> and provide commented, minimal, self-contained, reproducible code.
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