Dear R-Experts. I collected different datas about Nitrogen content (mg/ml) in Dung. The dung was eighter fresh (day=0) or had different ages (15,29,47) to observe nutrient changes over time.
Now I like to draw a boxplot. boxplot(nmgml~day) abline((nmgml~day) The Problem is, that the boxplot considers the day values as groups and not as time series (neighter when the days are numeric or factors). The result is, that the regression line looks different as when I draw a plot plot(nmgml~day) abline(nmgml~day) How can I reach that the boxplot's position on the x-axis is relative to the time value? (and the days are not just treated as groups) Data sample (Girafe-Dung) day nmgml 1 29 2.72655 2 29 2.48820 3 15 2.85945 4 15 2.58915 5 15 2.88345 6 15 2.66675 7 47 3.29125 8 15 2.44085 9 29 2.43065 10 29 2.43425 11 29 2.42705 12 0 1.12350 13 15 5.10310 14 15 0.99880 15 0 2.22350 16 47 2.18290 17 47 2.21570 18 47 2.46450 19 29 2.53350 20 47 2.78550 21 47 3.06920 22 0 2.65660 23 0 2.16650 24 0 2.20620 25 0 1.91870 26 0 2.45160 27 0 2.35980 28 0 1.99900 29 0 2.16300 30 15 2.00460 31 15 2.56220 32 47 2.38650 33 29 2.65820 34 29 2.47670 35 47 2.23770 36 29 2.40080 37 47 2.12650 38 29 2.35950 I really apreciate your help Sincerly... MJMaechler (Zurich, Switzerland) ______________________________________________ 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.
