The scatter plot is easy: plot(pH1 ~ pH2, data = OBJ)
When you say a loess for each -- how do you break them up? Are there repeat values for pH1? If so, this might be hard to do in base graphics, but ggplot2 would make it easy: library(ggplot2) ggplot(OBJ, aes(x = pH1, y = pH2)) + geom_point() + stat_smooth() + facet_wrap(~factor(pH1)) or something similar. Michael On Mon, Apr 23, 2012 at 11:26 PM, David Doyle <kydaviddo...@gmail.com> wrote: > Hi folks. > > If I have the following in my "data" > > event pH1 pH2 > 1 4.0 6.0 > 2 4.3 5.9 > 3 4.1 6.1 > 4 4.0 5.9 > and on and on..... for about 400 events > > Is there a way I can get R to plot event vs. pH1 and event vs. pH2 and > then do a loess or lowess line for each?? > > Thanks in advance > David > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. ______________________________________________ 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.
