2.2 manually change legend behaviourWe always want to change color or orders or positions of legend, how we can do that?Most of them can be changed by scale_color_manual() or theme().1 2 3 4 5 # change color delay %>% ggplot() + geom_line(aes(x=date, y=delay, color=carrier)...
# Change colors and shapes manually ggplot(mtcars, aes(x=wt, y=mpg, group=cyl)) + geom_point(aes(shape=cyl, color=cyl), size=2)+ scale_shape_manual(values=c(3, 16, 17))+ scale_color_manual(values=c('#999999','#E69F00', '#56B4E9'))+ theme(legend.position="top") 文本注...
# legend.position are:“left”,“top”,“right”,“bottom”,vectorc(x,y)p1<-p+theme(legend.position="top")p2<-p+theme(legend.position="bottom")p3<-p+theme(legend.position=c(0.8,0.2))ggarrange(p1,p2,p3,nrow=1) image.png 2.3 更改图例标题和文本字体样式 # 图例标题 p4 <- p + them...
position="top") p + theme(legend.position="bottom") # Remove legend p + theme(legend.position="none") legend.position 可选的选项有 : “left”,“top”, “right”, “bottom”. 绘制X轴为数值型的线图 代码语言:javascript 复制 # Create some data df2 <- data.frame(supp=rep(c("VC", "...
# No outline ggplot(data=PlantGrowth, aes(x=group, fill=group)) + geom_bar() # Add outline, but slashes appear in legend ggplot(data=PlantGrowth, aes(x=group, fill=group)) + geom_bar(colour="black") # A hack to hide the slashes: first graph the bars with no outline and add th...
Manually adding legend items (guides(),override.aes) ggplot2 will not add a legend automatically unless you map aethetics (color, size etc) to a variable. There are times, though, that I want to have a legend so that it’s clear what you’re plotting. Here is the default: ...
# Change colors and shapes manually ggplot(mtcars, aes(x=wt, y=mpg, group=cyl)) + geom_point(aes(shape=cyl, color=cyl), size=2)+ scale_shape_manual(values=c(3, 16, 17))+ scale_color_manual(values=c('#999999','#E69F00', '#56B4E9'))+ theme(legend.position="top") 1. 2...
# Change colors and shapes manually ggplot(mtcars, aes(x=wt, y=mpg, group=cyl)) + geom_point(aes(shape=cyl, color=cyl), size=2)+ scale_shape_manual(values=c(3, 16, 17))+ scale_color_manual(values=c('#999999','#E69F00', '#56B4E9'))+ theme(legend.position="top")...
通过设置主题(legend.position=“none”),可以删除图例。通过将其设置为“顶部”,即主题(legend.position=“顶部”),可以在图像周围移动图例。通过将legend.position设置为绘图内部的坐标,可以将图例放置在绘图内部。legend.justification表示图例的锚点,即将放置在legend.position给定坐标上的点。 # 无图例 p1 <- ggplo...
# add title and axis text, change legend title. # 添加渐变色,并设置颜色条图例标题 scale_color_discrete(name="Cut of diamonds") print(gg1) # print the plot 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 如果图例显示基于因子变量的形状属性,则需要使用scale_shape_discrete(name=“legend...