I'm plotting the following data (stored as data.frame object) as ROC-AUC plot using ggplot. I want to display each data in unique linetype and color and arrange them into a legend inside the plot, so I referenced this

CodePudding user response：

If this is only happening in your plot panel, try ggsave for example.

In my plot panel, it looked the same as in your picture:

However, after saving it in a folder, I get colors and linetypes: