Re: [R] Axes in polymars

From: Gavin Simpson <>
Date: Wed, 05 Mar 2008 21:21:32 +0000

On Wed, 2008-03-05 at 15:32 -0500, Shewcraft, Ryan wrote:
> Hi All,
> I can't quite figure out how to change the parameters of the x and y
> axes when I plot a polymars object. I want to add a scatterplot of the
> data points, but the polymars plot seems to automatically set the
> parameters to fit the polymars line. I've tried using plot(poly,1,fig=
> c(x1,x2,y1,y2)) but have no luck. Any thoughts?
> Thanks,
> Ryan

If I understand what you mean by parameters, see the xlim and ylim arguments to plot.polymars(). So say you want the x and y axes to range from 0 to 1:

x.lim <- y.lim <- c(0,1)
plot(poly, 1, xlim = x.lim, ylim = y.lim)

If you have data then try range() on the x and y values respectively and store the results as your x and y limits.


 Dr. Gavin Simpson             [t] +44 (0)20 7679 0522
 ECRC, UCL Geography,          [f] +44 (0)20 7679 0565
 Pearson Building,             [e]
 Gower Street, London          [w]
 UK. WC1E 6BT.                 [w]

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