Re: [R-SIG-Mac] Question about stripchart

2021-02-02 Thread Parkhurst, David F.
I’ll try that. Thank you again. From: Richard M. Heiberger Date: Tuesday, February 2, 2021 at 5:20 PM To: Parkhurst, David F. , r-sig-mac@r-project.org Subject: Fw: Question about stripchart months<-c("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec") monames.factor <-

[R-SIG-Mac] Fw: Question about stripchart

2021-02-02 Thread Richard M. Heiberger
months<-c("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec") monames.factor <- factor(monamescon$monames, levels=months) stripchart(conc~monames.factor, data=monamescon, vert=TRUE) read the help file ?factor and see that the levels factor must contain unique values.