我有以下情节:
ggplot(proba[108:140,], aes(c,four, color="a1")) +
geom_line(linetype=1, size=0.3) +
scale_x_continuous(breaks=seq(110,140,5)) +
theme_bw() +
theme(axis.line = element_line(colour = "black", size=0.25),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
panel.border = element_blank(),
panel.background = element_blank()) +
theme(axis.text.x = element_text(angle = 0, hjust = +0.5, size=6,color="black")) +
theme(axis.text.y = element_text(angle = 0, hjust = -100, size=6, color="black")) +
theme(axis.ticks=element_line(colour="black",size=0.25)) +
xlab("\nTime-steps")+ylab("Proportion correct\n") +
theme(axis.text=element_text(size=8),
axis.title=element_text(size=8)) +
geom_line(aes(c,three, color="a2"), size=0.2, linetype=2) +
geom_line(aes(c,one, color="a3"),linetype=3, size=0.8) +
geom_line(aes(c,two, color="a4"), linetype=1, size=0.6) +
scale_color_manual(values=c("a1"="red3", "a2"="red3","a3"="blue3","a4"="blue3")) +
theme(legend.title = element_text(colour="black", size=7)) +
theme(legend.position="bottom" ,
legend.direction="horizontal",
legend.title=theme_blank()) +
theme(legend.text=theme_text(size=7),
legend.background=theme_blank(),
legend.key=theme_blank())
图中的四条线以不同的线型显示,但图例并未显示这些不同的线型,只显示不同的颜色。我显然在theme()中缺少一个非常简单的参数,但我无法弄清楚它是什么。也许我需要在scale_colour_manual()中再次指定线型?
以下是数据:https://dl.dropboxusercontent.com/u/22681355/proba.csv
proba<-read.csv("proba.csv",head=T)
答案 0 :(得分:4)
在这里,这是在 ggplot2 中执行此操作的正确方法:
proba <- read.csv("~/Downloads/proba.csv")
proba1 <- proba[108:140,]
proba1 <- melt(proba1,id.vars = 1:2)
ggplot(proba1,aes(x = c,y = value,colour = variable,linetype = variable,size = variable)) +
geom_line() +
scale_x_continuous(breaks=seq(110,140,5)) +
scale_colour_manual(values=c("blue3","blue3","red3","red3")) +
scale_linetype_manual(values = c(2,1,3,1)) +
scale_size_manual(values = c(0.2,0.3,0.8,0.6)) +
xlab("\nTime-steps") +
ylab("Proportion correct\n") +
theme_bw() +
theme(axis.text=element_text(size=6),
axis.title=element_text(size=8),
axis.line = element_line(size=0.25),
axis.ticks=element_line(size=0.25),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
panel.border = element_blank(),
panel.background = element_blank(),
legend.position="bottom" ,
legend.direction="horizontal",
legend.title=element_blank(),
legend.text=element_text(size=7),
legend.background=element_blank(),
legend.key=element_blank())
尝试将所有主题调整保留在theme
的一次调用中,否则事情会变得非常混乱。此外,您有一些应该theme_*
的{{1}}来电。