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...
Thanks in advance
Christophe
PS : I work with R 2.9.0.
--
Christophe Dutang
Ph. D. student at ISFA, Lyon, France
website: http://dutangc.free.fr
[[alternative HTML version deleted]]
Christophe Dutang a ?crit :> 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")#try something like this legend("top",leg=c("a","b"),fill=1:2) Etienne> 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... > > Thanks in advance > > Christophe > > PS : I work with R 2.9.0. > > -- > Christophe Dutang > Ph. D. student at ISFA, Lyon, France > website: http://dutangc.free.fr > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >
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
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 ? 12:16, Jim Lemon a ?crit :> 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