I am trying to find a convenient way to control line colors when
printing from a for loop using the lines command.
Right now I have solved this by creating a colors vector that is refered
to in the loop with index. However, the colors choosen here are just
1,2,3,4,5...
I would like to get colors from the col = rainbow(x) that you can use in
plot() and set the to be my number of lines (I think I know how to set
it to my number of lines, but I don't know how to implement this into my
loop.
Is this possible?
This is my script:
__________________________________________________________________
###creating two emty vectors and opening a graphics window
x <- vector()
y <- vector()
plot(x,y, xlim = c(pheno.dt$year[1],pheno.dt$year[nrow(pheno.dt)]), ylim
= c(min(pheno.dt$julian, na.rm = TRUE),max(pheno.dt$julian, na.rm =
TRUE)), xlab = "Year", ylab = "Julian Day")
###setting up colors
sp_pheno.unique <- unique(pheno.dt$sp_pheno)
colors <- seq(1,200,1)
####printloop
for (i in 1:length(unique(pheno.dt$year))) {
data.sub <- subset(pheno.dt, pheno.dt$sp_pheno==sp_pheno.unique[i])
x <- seq(pheno.dt$year[1],pheno.dt$year[nrow(pheno.dt)])
y <- data.sub$julian
lines(x,y, col = colors[i])
}
______________________________________________
R-help@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.
