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:
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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