Dear All, Let: dp: depth of the river tp: temperature with respect to depth
These pair of observations are in 3 different groups i.e: Obs. 1,3,5,7 from the first group Obs. 2,4 and 10 from second group Obs 6,8 and 9 from third group. We can have a simple scatter plot, between depth as y-axis and temperature as x-axis, with each pairs are denoted by a red dot, by using a plot function shown below. ##################### dp <- c(1,4,3,2,5,7,9,8,9,2) tp <- 1:10 plot(tp,dp, type= 'p', col = 'red') ##################### Could someone please give some advices on the way to have a plot in which the color of each pair of observation corrrespond to its group? For instance, we might have red, blue and green dots corresponding to groups 1,2 and 3, respectively. Thank you Fir ______________________________________________ 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.
