Hi, Isn’t a bracket missing after gc_label?
So it should be: > ggplot(s8_plot, aes(fill=GTresult, y=cases, x=gc_label)) + + geom_bar(position="stack", stat="identity")) Best, Grzegorz Od: Kai Yang via R-help Wysłano: środa, 15 września 2021 19:50 Do: R-help Mailing List Temat: [R] ggplot question Hello List, I use ggplot to draw a stack bar chart. but I error message. please look it below: > ggplot(s8_plot, aes(fill=GTresult, y=cases, x=gc_label) + + geom_bar(position="stack", stat="identity")) Error: Mapping should be created with `aes()` or `aes_()`. GTresult and gc_label are character variables, cases is numeric variable. How to fix the problem? Thank you Kai [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.