Is there a way to make the plot(cox.zph(model))
use some other symbol than open circles? plot(cox.zph(model), pch=whatever) seems to have no effect. Thanks. --Chris Ryan ______________________________________________ R-help@r-project.org mailing list 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.