ggplot2中的主题操作:更改x和y网格线 [英] Theme manipulation in ggplot2: altering x and y grid lines
问题描述
是否可以使用主题操作ggplot中的虚线和虚线网格线的间距和大小?如下图:
p + l + opts(panel.grid.major = theme_line(color ='black',linetype = 'bash'),
panel.grid.minor = theme_line(color = NA),
panel.background = theme_rect(color ='white'))
我想在虚线和虚线网格线之间更改间距(如在Illustrator中)。
$ b $另外,有没有人知道x轴和y轴的网格线是否可以单独处理?例如,我想在这个例子中关闭x轴网格线。
我已经看到了使用vline和hline的操作(),但是如果可能的话,不要每次都要硬编码。
解决方案您可以使用
lty
的威力。请参阅?par
。
中的行类型规范。 b
$ bqplot(1:5,1:5)+ opts(panel.grid.major = theme_line(linetype =2925))
至于第二个问题,此时不能单独指定v和h行。
qplot(1:5,1:5)
grid .edit(panel.grid.major.x.polyline,grep = TRUE,gp = gpar(lty =5195))
grid.edit(panel.grid.major.y.polyline, grep = TRUE,gp = gpar(lty =33))
Is it possible to manipulate the spacing and size of dashed and dotted grid lines in ggplot using the themes? The following plot:
p + l + opts(panel.grid.major = theme_line(colour = 'black', linetype = 'dashed'), panel.grid.minor = theme_line(colour = NA), panel.background = theme_rect(colour = 'white'))
I'd like to change the spacing (such as in Illustrator) between dashed and dotted grid lines.
Additionally, does anyone know if the x-axis and y-axis grid lines can be manipulated separately? For instance, I want to turn off the x-axis grid lines in this example.
I have seen manipulation using vline and hline (Add a dotted vertical line on certain x-axis values using ggplot), but don't want to have to hard code that each time if possible.
解决方案You can use the power of
lty
. see Line Type Specification in?par
.example:
qplot(1:5, 1:5) + opts(panel.grid.major = theme_line(linetype = "2925"))
As for the second question, at this time you cannot specify the v and h lines separately.
Here is a quick and dirty hack:qplot(1:5, 1:5) grid.edit("panel.grid.major.x.polyline", grep = TRUE, gp = gpar(lty = "5195")) grid.edit("panel.grid.major.y.polyline", grep = TRUE, gp = gpar(lty = "33"))
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