我有以下脚本,它假设创建一个带有两列图例的图。
#!/usr/bin/Rscript
library(ggplot2)
library(plyr)
library(reshape2)
library(scales)
file <- "http://dpaste.com/1354089/plain/";
dat <-read.table(file,header=TRUE);
datm <- melt(dat)
# Plot them
ggplot(datm,aes(x = variable,y = value,fill = Term)) +
geom_bar(position = "fill") +
scale_y_continuous(labels = percent_format())+
theme(legend.direction ="vertical",legend.position = "bottom")+
guides(color=guide_legend(ncol=2))+ # this doesn't seem to work
ggsave(file="~/Desktop/test.pdf",width=11,height=11)
但它反而创造了这个数字
我怎样才能正确地做到这一点?