On Wed, 18 Aug 2010, Pablo Cerdeira wrote:
Hi all,
I'm trying to plot this two curves in a single cartesian plane, but when I
plot the first one, the plot appears with no negative "y" value. When I plot
the second curve, it almost does not apear in the graph.
I was trying the plot.window but with no success.
Can someone help me with this?
The answer is in
?par
but it requires a bit of deduction. Start with the description of yaxs,
which refers to xaxs. Notice what the xaxs paragraph says about xlim. If
you can figure out that there is also a ylim arg, then you are pretty much
finished. Something like
plot( f, -10, 10, ylim=c(-100,100) )
will reveal both curves.
xlim and ylim also appear briefly in R-Intro ni Appendix A.
FWIW, one can use xlim and ylim to 'zoom in' on a section of a plot.
HTH,
Chuck
If possible, I'd like to plot this curves in a perfect cartesian plane.
f = function(x) {
x^2
}
f2 = function(x) {
-x^2
}
plot(f,-10,10)
abline(h=0, v=0, col = "gray60")
curve(f2,col="orange", add=T)
Thanks in advanced!
*pablo de camargo cerdeira*
pablo.cerde...@gmail.com | pa...@fgv.br
Phone: +55-(21)-3799-6065
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