[R] Axes in polymars

Gavin Simpson gavin.simpson at ucl.ac.uk
Wed Mar 5 22:21:32 CET 2008


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.

HTH

G

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