ggplot2 中图例的自定义顺序,因此它与图中因子的顺序不匹配 [英]Custom order of legend in ggplot2 so it doesn't match the order of the factor in the plot
使用ggplot和管道将线型拟合到多因素图解的图例中 [英]Fit linetype in the legend of a multifactorial plot, using ggplot and pipes