001、设置长度
基础绘图:
ggplot(data=mtcars, aes(x=mpg, y=disp, color=factor(cyl))) +
geom_point()
绘图如下:
002、设置刻度标签的长度
library(ggplot2)
ggplot(data=mtcars, aes(x=mpg, y=disp, color=factor(cyl))) +
geom_point() +
theme(axis.ticks.length.x = unit(0.5,'cm'),
axis.ticks.length.y = unit(0.2,'cm')) ## 设置ticks的长度
003、设置刻度标签的粗细
library(ggplot2)
ggplot(data=mtcars, aes(x=mpg, y=disp, color=factor(cyl))) +
geom_point() +
theme(axis.ticks.length.x = unit(0.5,'cm'),
axis.ticks.length.y = unit(0.5,'cm'),
axis.ticks.x = element_line(colour = "black",size = 5), ## 设置刻度标签的粗细
axis.ticks.y = element_line(colour = "black",size = 1))
绘图如下:
。
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