梯度中断ggplot stat_bin2d图 [英] gradient breaks in a ggplot stat_bin2d plot
问题描述
我在 ggplot2
包中使用 stat_bin2d
创建了一个2d直方图。我想要控制颜色渐变中的中断数量以及这些中断的位置。我敢肯定,我只是忽略了一些小事,但我无法弄清楚如何控制分档中的休息。例如:
x < - rnorm(100)^ 2
y < - rnorm(100)^ 2
df < - data.frame(x,y)
require(ggplot2)
p < - ggplot(df,aes (x,y))
p <-p + stat_bin2d(bins = 20)
p + scale_colour_gradient2(breaks = c(1,2,3,4,5,6))
这产生:
这个图只有 c(1,2,3,4,5,6)处放置休息符)
任何提示?
code> cut 和 bin2d
:
<$ c (x,y,fill = cut(.. count ..,c(0,6,8,9,Inf))))
p< -p + stat_bin2d(bins = 20)
p + scale_fill_hue(count)
如果您定义了cle,许多方法可以使这些断点变得随意arly你想要什么,可能你会得到一个更好的答案。
I have a 2d histogram created with stat_bin2d
in the ggplot2
package. I'd like to control both the number of breaks in the color gradient, as well as where those breaks are located. I'm sure I'm just overlooking something small, but I can't figure out how to control the breaks in the binning.
Example:
x <- rnorm(100)^2
y <- rnorm(100)^2
df <- data.frame(x,y)
require(ggplot2)
p <- ggplot(df, aes(x, y))
p <- p + stat_bin2d(bins = 20)
p + scale_colour_gradient2(breaks=c(1,2,3,4,5,6))
This produces:
This plot only has 3 breaks at c(5,10,15)
despite my futile attempt to put breaks at c(1,2,3,4,5,6))
Any hints?
here is an example combining cut
and bin2d
:
p <- ggplot(df, aes(x, y, fill=cut(..count.., c(0,6,8,9,Inf))))
p <- p + stat_bin2d(bins = 20)
p + scale_fill_hue("count")
As there are many ways to make the breaks arbitrary, if you define clearly what you want, probably you can get a better answer.
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