在ggplot2中增加绘图区域周围的区域 [英] Increasing area around plot area in ggplot2

问题描述

如何增加ggplot 2中的绘图区域以使我的轴标题具有一定的呼吸空间。我知道vjust和hjust（如下），但是，我似乎无法在绘图区域周围创建实际空间来移动我的轴标题。

<$ p $ （x，y，y，mpg））+ geom_point（）
p

p < - p +主题（（mtcars，aes axis.title.x = element_text（family =Times，size = 20，face =bold，color =Black，vjust = -1，hjust = 0.5））
p

theme（）来修改绘图周围的空白处。 >和 plot.margin = 您可以提供从顶部开始，然后是右侧，底部和左侧的边距尺寸。使用函数 unit（）附加库 grid 。

pre $ library（grid）
ggplot（mtcars，aes（x = wt，y = mpg））+ geom_point ）+
主题（axis.title.x = element_text（family =Times，size = 20，
face =bold，color =Black，vjust = -1，hjust = 0.5 ））+
theme（plot.margin = unit（c（1,1,1.5,1.2），cm））


How can I increase the area around a plot area in ggplot 2 to give my axis titles some breathing room. I am aware of vjust and hjust (as below), however, I can't seem to create actual space around the plotting area to move my axes titles onto.

p <- ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()
p

p<- p + theme(axis.title.x = element_text(family="Times",size=20,face="bold",colour = "Black",vjust=-1,hjust=0.5)) 
p

解决方案

Margins around plot can be modified with theme() and plot.margin= where you provide size of margins starting with top, then right, bottom and left. Library grid is attached to use function unit().

library(grid)
ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point() + 
  theme(axis.title.x = element_text(family="Times",size=20,
                face="bold",colour = "Black",vjust=-1,hjust=0.5))+
  theme(plot.margin=unit(c(1,1,1.5,1.2),"cm"))

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