Hi,
There is no way to obtain an automatical legend with plot. The choice
you have is to draw the legend by yourself or to use another graphical
package but it is not necessary easier...
For example, the code for the package ggplot2:
donnees <- data.fram(x=x,y=y,y1=y1)
melt(donnees,id="x") -> donnees.m
qplot(x,value,data=donnees.m,colour=variable,geom=c("point","line"))
Alain
On 22-Jul-10 12:17, Yogesh Tiwari wrote:
Dear R Users,
If we issue simple plot command in R we don't get legend of the plot
automatically.
For example, following lines plots two curves, but to write a legend of
these two curves there is no simple command. I checked with ?legend but
it seems bit complicated for me. Does anyone know how to get a legend in a
simple way for following R plot.
Thanks, Yogesh
plot (x,y, type='n', ann=FALSE)
lines(x,y,col=1,lty="solid")
points(x,y,pch=16)
points (x,y1, type='n', ann=FALSE)
lines(x,y1,col=1,lty="solid")
points(x,y1,pch=21)
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Alain Guillet
Statistician and Computer Scientist
SMCS - IMMAQ - Université catholique de Louvain
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