PIKAL Petr <petr.pi...@precheza.cz> writes: > Hi > > Not extremely clear what do you want to plot. Do you want to add a > line which marks total number of files each day regardless of user? Or > a total number of files regardless of date coloured by user?
Sorry, I was unclear. I meant that I would like to plot the following: 1. For each user: the number of files for each date (my code does this) 2. The sum of files of all users for each date (this is what I still need) > In each case you shall search functions geom_hline or geom_abline > > http://stackoverflow.com/questions/13254441/add-a-horizontal-line-to-plot-and-legend-in-ggplot2 So I don't want a straight line > ggplot is rather complicated but very flexible I don't mind ggplot being complicated, but I find the documentation a little impenetrable. Cheers, Loris >> -----Original Message----- >> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Loris >> Bennett >> Sent: Monday, March 09, 2015 2:56 PM >> To: r-h...@stat.math.ethz.ch >> Subject: [R] Add sum line to plot of multiple x values >> >> Hi, >> >> Here are my data: >> >> > d >> user files date >> 1 alice 18 2013-09-15 >> 2 bob 5 2013-09-15 >> 3 carol 21 2013-09-15 >> 4 alice 22 2013-09-08 >> 5 bob 9 2013-09-08 >> 6 carol 14 2013-09-08 >> 7 alice 26 2013-09-01 >> 8 bob 3 2013-09-01 >> 9 carol 22 2013-09-01 >> >> I would like to plot the number of files against date for all users, so >> I have: >> >> library(ggplot2) >> >> people <- c("alice","bob","carol") >> user <- c(rep(people,3)) >> files <- c(18,5,21,22,9,14,26,3,22) >> date <- c(rep("2013-09-15",3),rep("2013-09-08",3),rep("2013-09- >> 01",3)) >> d <- data.frame(user=user,files=files,date=date) >> >> p <- ggplot() >> p <- p + geom_line(data=d,aes(x=date,y=files,group=user,colour=user)) >> >> I would now like to add a line to show the total number of files as a >> function of date. I tried >> >> p <- p + >> geom_line(data=d,aes(x=date,y=sum(files),group=date),colour='black') >> >> I don't get a black line, but the plot is scaled such that I can see >> that sum(file) for all values of 'file', rather than those for each >> date, is being used. >> >> I would like to know how to do this correctly, but I would rather be >> able to work it out for myself. However, if I decide, say, that I >> don't >> know exactly what the 'group' argument does, how do I find it out? >> >> ?geom_line doesn't have it, although the examples there use it. ?ggplot >> doesn't mention it. ?group gives me stuff about formatting text >> arguments. ??group only leads me to ?ggplot2::add_group, which also >> does >> not seem to help. >> >> Am I at fault for trying to learn R in an ad hoc manner, to which the >> documentation of R does not lend itself, or am I missing something? >> >> Cheers, >> >> Loris >> >> -- >> This signature is currently under construction. >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. > > ________________________________ > Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou > určeny pouze jeho adresátům. > Jestliže jste obdržel(a) tento e-mail omylem, informujte laskavě neprodleně > jeho odesílatele. 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