Dear ALL,
please find attached a small test file. (code is copied in this mail too)
Basically (as shown) I would like to combine several results in one graph.
I could succeed to plot the data correctly, but the legend generation does not
fit.
For the dfStartPoints and the dfEndpoints I just want to be able to select the
color AND (if possible the shape of each one)
The legend I'm getting could be modified for its title , but I was not able to
to change the label value itself.
My final wish is to get 3 Legends (the one for dfXY is fully OK)
Legend one (Titled Cell/Area...) is fully OK as it is
Legend two should have Title "Start Point"s" color "red" AND the count of data
points as value
Legend three should have Tile Ënd Points color "green"AND the count of data
points as value.
I think I can easily get the count , but I have no idea how to modify the
related legends in code
There are many examples of this (e.g.
http://docs.ggplot2.org/current/guide_legend.html ) , but nothing fits really.
Hope someone can help on this
Rolf
######################## code as attached ###############################
require(sqldf)
options(gsubfn.engine = "R")
require(ggplot2)
rm(list=ls(all=TRUE))
maxCells = max(primitiveDensityMap$c)
#craete a 100 * 100 grid with random values(cellCount)
dfXY <- data.frame(x=rep(0:99, each=100) , y=rep(0:99, each=1) ,
cellCount=sample(0:99, 10000 , replace=T) )
dfStartPoints <- data.frame(x=sample(10:20, 3 , replace=T) , y=sample(30:40, 3
, replace=T) )
dfEndPoints <- data.frame(x=sample(70:80, 3 , replace=T) , y=sample(90:100, 3 ,
replace=T) )
nrow(dfXY)
#get max and min
maxCells = max(dfXY$cellCount)
ggplot(dfXY, aes(x=x,y=y)) +
geom_tile(aes(fill= cellCount), as= 1) +
labs(title="Primitive Cell Density", x="mm", y="mm") +
scale_fill_continuous( space= "Lab" , low="white", high="black" ,
breaks=seq(0,maxCells ,by=round(maxCells/10) ), guide = guide_legend( title =
"Cells/Area\n(100um^2)" ) ) +
coord_fixed() +
geom_point(data=dfStartPoints , aes( colour="red" ) ) +
labs(color="Start Points" ) +
geom_point(data=dfEndPoints , aes( colour="green" ) ) +
labs(color="End Points" )
#######################################################################
(See attached file: R_test.PNG)(See attached file: help_test_2.r)
Rolf Kemper, Manager, Mixed Signal Design, Networking, Renesas Electronics
Europe GmbH, , Arcadiastr. 10, 40472, Duesseldorf, Germany, Phone:+49 211
6503-1475, Fax:+49 211 6503-1540, mailto:rolf.kem...@renesas.com,
http://www.renesas.eu
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