Re: [R] ggplot trouble when I combine a layer with group and a layer with group=1

For interested people I got an answer on this link, thank you. https://stackoverflow.com/questions/79573847/ggplot-trouble-when-i-combine-a-layer-with-group-and-a-layer-with-group-1?noredirect=1#comment140334381_79573847 Le 12/04/2025 à 17:24, Laurent Rhelp a écrit : Dear RHelp-list,   I wan

[R] ggplot trouble when I combine a layer with group and a layer with group=1

Dear RHelp-list,   I want to combine with ggplot2 a layer where I compare   three regressions and a layer where I just display three   new samples to evaluate their locations to the regressions lines.   (the mock data is placed at the end of the mail) # 1. comparison of the three regressions (i