I have a plot in ggplot2 with, say, 2 lines, and in the legend I have "Sharks" and "Tigers". Is there a way I could have shark/tiger images appear in the legend instead of that text?I have a plot in ggplot2 with, say, 2 lines, an
阅读背景：
在ggplot2传奇中使用图像而不是标签。
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