Defining groups in aes() to make same groups having the same color in multiple ggplots-CodePudding

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Defining groups in aes() to make same groups having the same color in multiple ggplots

Time：03-28

Can somebody try to explain the syntax of aes(color=paste("mean", Role), group=Role) in this

As you can see in the legend of the plot, the species are shown also with "mean" before and those lines are the mean values of those species.