Another possibility without using subset(): plot(Well[][Plate==101]~Raw[][Plate==101])
This also works to '>=' '<=' and other conditions. -- View this message in context: http://r.789695.n4.nabble.com/Simple-conditional-plot-tp3654300p3654666.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.