[R] Help making box plots in R when the x axis is a quantitative variable

Hello I'm trying to make boxplots However I'm having issues because my x axis is distance downstream on a river. The boxplots function in r assumes the x axis are categorical variables but I would like my boxplots to show true distance downstream just as it would if I used the plots function. H

[R] Help with using plotmeans - how do I have two or more sets of data on one plot?

Hello I'm having trouble being able to plot more than one set of data using the plotmeans function. Plotmeans is where you can plot means and standard errors easily. Here is part of my code plotmeans(Mmeans ~ Month, data=BW.hydat.05HG001, n.label=FALSE)#one set of data par(new=TRUE) plotmeans