问题描述
我使用geom_smooth绘制了一些数据，并寻找一种方法来改变每行的标准错误阴影的颜色以匹配该行（即，红线会使其标准错误显示为红色）。我浏览了官方ggplot2文档以及opts（）列表。任何建议（或只是确认是否可能）赞赏。
I'm plotting some data using geom_smooth and looking for a way to change the color of the standard error shading for each line to match that line (ie., a red line would have it's standard error shaded red). I've looked through the official ggplot2 documentation as well as the list of opts() at https://github.com/hadley/ggplot2/wiki/%2Bopts%28%29-List. Any advice (or just confirmation of whether or not it's possible) is appreciated.
推荐答案
您的（可理解的）错误是认为你应该改变颜色而不是填充。标准错误阴影基本上是由 geom_ribbon 构成的，它们是2d区域，所以它们填充的颜色由填充，而不是 color 。
Your (understandable) mistake is to think that you should be changing the color rather than the fill. The standard error shadings are made with geom_ribbon essentially, and they are a 2d area, so the "color" they are "filled" with is determined by fill, not colour.
试试：
geom_smooth(aes(...,fill = variable))
其中变量与您映射到其他地方的颜色相同。
where variable is the same one you map to colour elsewhere.
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