ggplot2 中圖例的自定義順序,因此它與圖中因子的順序不匹配 [英]Custom order of legend in ggplot2 so it doesn't match the order of the factor in the plot
使用ggplot和管道將線型擬合到多因素圖解的圖例中 [英]Fit linetype in the legend of a multifactorial plot, using ggplot and pipes