如何删除ggplot2中绘图区域和面板之间的边距? [英] How to remove the margin between plot region and panel in ggplot2?
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问题描述
这是重现我的问题的最简单的例子
library(ggplot2)
library(grid)
df< - expand.grid(list(x = seq( 1),y = seq(1,10),z = seq(1,2)))
p < - ggplot(df)+ geom_tile(aes(x,y))+ facet_wrap(〜z)
p < - p + theme_minimal()+ xlab('')+ ylab('')
p < - p + theme(axis.text = element_blank ),
panel.grid = element_blank(),
axis.ticks = element_blank(),
panel.border = element_rect(color ='black',fill ='transparent'),
panel.margin =单位(0,'mm'))
p + ylim(2,6)+ xlim(2,6)
这是我的代码的结果。
如何去掉上图中的所有白色区域?感谢您的任何建议。
解决方案
(好的,这里是我的评论作为答案..)
只需将以下内容添加到图中:
+ scale_y_continuous(expand = c(0,0) )+ scale_x_continuous(expand = c(0,0))
I am creating some maps and want to remove all margins between the plot region and panel border.
This is the minimal example to reproduce my question
library(ggplot2)
library(grid)
df <- expand.grid(list(x = seq(1, 10), y = seq(1, 10), z = seq(1, 2)))
p <- ggplot(df) + geom_tile(aes(x, y)) + facet_wrap(~z)
p <- p + theme_minimal() + xlab('') + ylab('')
p <- p + theme(axis.text = element_blank(),
panel.grid = element_blank(),
axis.ticks = element_blank(),
panel.border = element_rect(colour = 'black', fill = 'transparent'),
panel.margin = unit(0, 'mm'))
p + ylim(2, 6) + xlim(2, 6)
This is the result of my codes.
How could I remove all white areas in the figure above? Thanks for any suggestions.
解决方案
(Alright, here's my comment as an answer..)
Just add the following to the plot:
+ scale_y_continuous(expand = c(0,0)) + scale_x_continuous(expand = c(0,0))
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