I thought I have tried to pass a vector of "colors" and that it did
not work..
Thanks for all!
Christophe
Le 29 avr. 09 à 12:16, Jim Lemon a écrit :
Christophe Dutang wrote:
Hi all,
I tried to a nice legend with small boxes filled with the colors
used for the plots. But it does nor work, boxes are always filled
with black.
An example is here
plot(1:4,1:4)
lines(1:4,4:1, col="blue")
legend("top",leg=c("a","b"),col=c("black","blue"), fill=TRUE)
How could I specify the colors? the argument col.box is the color
of the whole legend box...
Ah Cristophe, you have been waylaid by the coercion of types. The
fill argument specifies the colors of the boxes, and you have sent
it TRUE. As TRUE happens to be equal to 1, legend is fooled into
filling the boxes with the color assigned the number 1, which is
black. Try:
legend(...,fill=c("black","blue"),...)
Jim
--
Christophe Dutang
Ph. D. student at ISFA, Lyon, France
website: http://dutangc.free.fr
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