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]]
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