Hi, Have a look at:
?rainbow ?rgb ?heatmap In my opinion this would've likely popped up with just a little effort of searching. In fact, the help of grey() (?grey) already gives pointers to the other color functions. Please show that you at least have tried to find answers before posting questions on a user list. Tsjerk On Fri, Mar 27, 2009 at 2:16 PM, Paulo E. Cardoso <pecard...@netcabo.pt> wrote: > I'm trying to create a graph where different cells of a grid (a shapefile) > will be painted with a color share scale, where the most easy way is to use > gray(). > > Can I somehow get a vector (gradient) of colors, a vector of colors with > other methods but gray()? > > I'm doing this until now > > > > quad_N_sp <- > merge(sp_dist[sp_dist$sp==splist[i],],grelha_ID,by.x="quad",by.y="quadricula > ",all.y=T,) > > quad_N_sp$x[is.na(quad_N_sp$x)] <- 0 > > quad_N_sp <- quad_N_sp[order(quad_N_sp$id),] > > paleta <- gray(1-(quad_N_sp$x)/max(quad_N_sp$x)) #! Tons de cinzento > > win.graph(4,5) > > plot(grelha,ol="grey80", #! Gráfico com grelha de amostragem e gradiente > de abundância > > fg=paleta, > > cex.lab=0.7, > > cex.axis=0.7, > > cex.main=0.7, > > xlab="Coord X", > > ylab="Coord Y", > > main=paste("Espécie: ",splist[i]), > > xlim=c(210000,240000) > > ) > > col_lab <- c(max(quad_N_sp$x),min(quad_N_sp$x)) #! Vector com os limites > min e max do N de indivíduos observados > > > color.legend(248000,120000,250000,128000,col_lab,sort(unique(paleta)),gradie > nt="y",cex=0.6)#! Legenda > > text(245300,130500,"Nº Indivíduos",cex=0.6) > > plot(blocos,ol="grey40",fg=NA,add=T) > > > > I'd like to replace the grey shade by other colors. > > > > Thanks in advance > > ____________ > > Paulo E. Cardoso > > > > > [[alternative HTML version deleted]] > > > ______________________________________________ > 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. > > -- Tsjerk A. Wassenaar, Ph.D. Junior UD (post-doc) Biomolecular NMR, Bijvoet Center Utrecht University Padualaan 8 3584 CH Utrecht The Netherlands P: +31-30-2539931 F: +31-30-2537623 ______________________________________________ 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.