aes(x=dose,y=slots,group=catgry))+geom_line()+geom_point(color="black",size=3)+labs(x="Doses",y="Free Slots")+ggtitle("Vaccine Details")plt# Adding
) # 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 the legend, # then graph the bars again with outline, but with a blank legend....
# 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 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 title”)进行更改。如果它是一个连续变量,改用scale_shape...
也可以通过 change manually line colors 手动设置线的颜色 scale_color_manual() : to use custom colors scale_color_brewer() : to use color palettes from RColorBrewer package scale_color_grey() : to use grey color palettes 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # Use custom color...
# 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...
# 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...
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: ...
编者按:数据可视化是解析、理解和展示数据不可缺少的一部分。炫或不炫看个人喜好和功底,能否达意是最基本的要求---最合适的图示和配色表达最直观的含义。长文多图预警,这是关于ggplot2使用的极详细教程(190+图),是入门和晋级参考的不二手册。 前面部分是关于qplot的使用,后面是ggplot2图层的使用。原文使用R自带数据...
Warning message: "Using shapes for an ordinal variable is not advised" Warning message: "The shape palette can deal with a maximum of 6 discrete values because more than 6 becomes difficult to discriminate; you have 7. Consider specifying shapes manually if you must have them." Warning message...
Remove the plot legend Remove slashes in the legend of a bar plot guides() : set or remove the legend for a specific aesthetic Functions:guides(),guide_legend(),guide_colourbar() Change colors automatically and manually Use a single color ...