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ggplot2中的颜色设置,几行代码搞定!
通常我们绘图时,ggplot默认的颜色是黑色(图1、图3),其实我们可以通过color参数设置想要的颜色,例如color=”red”(图2): color参数通常用于散点图、折线图等。但是当我们的图为柱状图或者空心的散点图点时(如图3、图4),用color参数就只能设置边框的颜色 ...
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