package rgrs define carte.qual colour palette

Question

I'm using the rgrs package to creat a qualitative based map. I'm not a fan of the palettes provided by ColorBrewer, how can I define my own colour palette?

I tried the following...

pal<-c("#2ca25f","#99d8c9","#99d8c9")

carte.qual(Frdep, Corr, "Niveau_correlation", sp.key = "CODE_DEPT", 
       data.key = "Dep", 
       palette.qual="pal", border="grey25", 
       leg.options=list(rect.width=0.025, rect.height=0.045, 
                        inset=c(0.68, 0.345), cex=0.85))

Which returns the following error message:

Error in brewer.pal(qual.nb, palette.qual) : 
pal is not a valid palette name for brewer.pal

Removing the speech marks from "pal" returns the same message. Can anyone help?

Answer 1

It looks like you're using the palette.qual when you should be using the palette argument. Your code should read:

pal<-c("#2ca25f","#99d8c9","#99d8c9")

carte.qual(Frdep, Corr, "Niveau_correlation", sp.key = "CODE_DEPT", 
       data.key = "Dep", 
       palette=pal, border="grey25", 
       leg.options=list(rect.width=0.025, rect.height=0.045, 
                        inset=c(0.68, 0.345), cex=0.85))