Hi Petr, See inline. PIKAL Petr <petr.pikal at precheza.cz> writes:> Hi > > see inline > >> -----Original Message----- >> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Loris >> Bennett >> Sent: Monday, March 09, 2015 4:35 PM >> To: r-help at stat.math.ethz.ch >> Subject: Re: [R] Add sum line to plot of multiple x values >> >> PIKAL Petr <petr.pikal at 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 > > but in your code is > >>> geom_line(data=d,aes(x=date,y=sum(files),group=date),colour='black') > > so you apparently want some sort of line.Yes, but see below.> anyway, if I do > > d.ag<-aggregate(d$files, list(d$date), sum) > > I can add > > p+geom_point(data=d.ag,aes(x=Group.1,y=x), size=5) > > and I get summary points.Thanks, this works.> If you want lines you can do > > p+geom_hline(data=d.ag,aes(yintercept=x, colour=Group.1)) > > or you can fiddle with geom_segmentI don't want an hline, just a line joining the dots I get using geom_point. I thought something like p + geom_line(data=d.ag,aes(x=as.character(Group.1),y=x) would work. However, while I get a plot with axes labelled in the correct ranges, no line is plotted. Explicitly setting the colour with p + geom_line(data=d.ag,aes(x=as.character(Group.1),y=x),colour="red") doesn't help. What am I doing wrong?>> >> > ggplot is rather complicated but very flexible >> >> I don't mind ggplot being complicated, but I find the documentation a >> little impenetrable. > > You can find plenty of help when you just try to google on the item > searching. Actually this is what I do when the solution is not obvious > or requires some hidden instruction.This is what I normally resort to with varying degrees of success. It just seems a bit of a shame the some of the documentation for such a good piece of software does indeed appear to be rather "hidden".> Cheers > Petr > >> >> Cheers, >> >> Loris >> >> >> >> -----Original Message----- >> >> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of >> Loris >> >> Bennett >> >> Sent: Monday, March 09, 2015 2:56 PM >> >> To: r-help at 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. >> >>-- This signature is currently under construction.
Loris Bennett <loris.bennett at fu-berlin.de> writes:> Hi Petr, > > See inline. > > PIKAL Petr <petr.pikal at precheza.cz> writes: > >> Hi >> >> see inline >> >>> -----Original Message----- >>> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Loris >>> Bennett >>> Sent: Monday, March 09, 2015 4:35 PM >>> To: r-help at stat.math.ethz.ch >>> Subject: Re: [R] Add sum line to plot of multiple x values >>> >>> PIKAL Petr <petr.pikal at 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 >> >> but in your code is >> >>>> geom_line(data=d,aes(x=date,y=sum(files),group=date),colour='black') >> >> so you apparently want some sort of line. > > Yes, but see below. > >> anyway, if I do >> >> d.ag<-aggregate(d$files, list(d$date), sum) >> >> I can add >> >> p+geom_point(data=d.ag,aes(x=Group.1,y=x), size=5) >> >> and I get summary points. > > Thanks, this works. > >> If you want lines you can do >> >> p+geom_hline(data=d.ag,aes(yintercept=x, colour=Group.1)) >> >> or you can fiddle with geom_segment > > I don't want an hline, just a line joining the dots I get using > geom_point. I thought something like > > p + geom_line(data=d.ag,aes(x=as.character(Group.1),y=x) > > would work. However, while I get a plot with axes labelled in the > correct ranges, no line is plotted. Explicitly setting the colour with > > p + geom_line(data=d.ag,aes(x=as.character(Group.1),y=x),colour="red") > > doesn't help. What am I doing wrong?I found the answer by googling "geom_line doesn?t draw lines". The following does what I want: ggplot(data=d.ag,aes(x=as.character(Group.1),y=x,group=1)) +_geom_line() My understanding is that, because 'Group.1' is a factor, the 'x' values are not considered as belonging to the same group and geom_line only connects points within a group.>>> > ggplot is rather complicated but very flexible >>> >>> I don't mind ggplot being complicated, but I find the documentation a >>> little impenetrable. >> >> You can find plenty of help when you just try to google on the item >> searching. Actually this is what I do when the solution is not obvious >> or requires some hidden instruction. > > This is what I normally resort to with varying degrees of success. It > just seems a bit of a shame the some of the documentation for such a > good piece of software does indeed appear to be rather "hidden". > >> Cheers >> Petr >> >>> >>> Cheers, >>> >>> Loris >>> >>> >>> >> -----Original Message----- >>> >> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of >>> Loris >>> >> Bennett >>> >> Sent: Monday, March 09, 2015 2:56 PM >>> >> To: r-help at 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. >>> >>-- Dr. Loris Bennett (Mr.) ZEDAT, Freie Universit?t Berlin Email loris.bennett at fu-berlin.de
Hi
Yes, your understanding is correct
the same can be achieved by:
p+geom_point(data=d.ag,aes(x=Group.1,y=x), size=5)+
geom_line(data=d.ag,aes(x=1:3, y=x))
as factors are treated from 1 to number of levels if given as x aestetics.
The whole code is
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))
d.ag<-aggregate(d$files, list(d$date), sum)
p+geom_point(data=d.ag,aes(x=Group.1,y=x), size=5)+
geom_line(data=d.ag,aes(x=1:3, y=x))
Cheers
Petr
> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Loris
> Bennett
> Sent: Tuesday, March 10, 2015 1:43 PM
> To: r-help at stat.math.ethz.ch
> Subject: Re: [R] Add sum line to plot of multiple x values
>
> Loris Bennett <loris.bennett at fu-berlin.de> writes:
>
> > Hi Petr,
> >
> > See inline.
> >
> > PIKAL Petr <petr.pikal at precheza.cz> writes:
> >
> >> Hi
> >>
> >> see inline
> >>
> >>> -----Original Message-----
> >>> From: R-help [mailto:r-help-bounces at r-project.org] On
Behalf Of
> >>> Loris Bennett
> >>> Sent: Monday, March 09, 2015 4:35 PM
> >>> To: r-help at stat.math.ethz.ch
> >>> Subject: Re: [R] Add sum line to plot of multiple x values
> >>>
> >>> PIKAL Petr <petr.pikal at 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
> >>
> >> but in your code is
> >>
> >>>>
> geom_line(data=d,aes(x=date,y=sum(files),group=date),colour='black'
> >>>> )
> >>
> >> so you apparently want some sort of line.
> >
> > Yes, but see below.
> >
> >> anyway, if I do
> >>
> >> d.ag<-aggregate(d$files, list(d$date), sum)
> >>
> >> I can add
> >>
> >> p+geom_point(data=d.ag,aes(x=Group.1,y=x), size=5)
> >>
> >> and I get summary points.
> >
> > Thanks, this works.
> >
> >> If you want lines you can do
> >>
> >> p+geom_hline(data=d.ag,aes(yintercept=x, colour=Group.1))
> >>
> >> or you can fiddle with geom_segment
> >
> > I don't want an hline, just a line joining the dots I get using
> > geom_point. I thought something like
> >
> > p + geom_line(data=d.ag,aes(x=as.character(Group.1),y=x)
> >
> > would work. However, while I get a plot with axes labelled in the
> > correct ranges, no line is plotted. Explicitly setting the colour
> > with
> >
> > p +
> >
geom_line(data=d.ag,aes(x=as.character(Group.1),y=x),colour="red")
> >
> > doesn't help. What am I doing wrong?
>
> I found the answer by googling "geom_line doesn?t draw lines".
The
> following does what I want:
>
> ggplot(data=d.ag,aes(x=as.character(Group.1),y=x,group=1))
> +_geom_line()
>
> My understanding is that, because 'Group.1' is a factor, the
'x' values
> are not considered as belonging to the same group and geom_line only
> connects points within a group.
>
> >>> > ggplot is rather complicated but very flexible
> >>>
> >>> I don't mind ggplot being complicated, but I find the
documentation
> >>> a little impenetrable.
> >>
> >> You can find plenty of help when you just try to google on the
item
> >> searching. Actually this is what I do when the solution is not
> >> obvious or requires some hidden instruction.
> >
> > This is what I normally resort to with varying degrees of success.
> It
> > just seems a bit of a shame the some of the documentation for such a
> > good piece of software does indeed appear to be rather
"hidden".
> >
> >> Cheers
> >> Petr
> >>
> >>>
> >>> Cheers,
> >>>
> >>> Loris
> >>>
> >>>
> >>> >> -----Original Message-----
> >>> >> From: R-help [mailto:r-help-bounces at r-project.org]
On Behalf Of
> >>> Loris
> >>> >> Bennett
> >>> >> Sent: Monday, March 09, 2015 2:56 PM
> >>> >> To: r-help at 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='blac
> >>> >> k')
> >>> >>
> >>> >> 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.
> >>> >>
>
> --
> Dr. Loris Bennett (Mr.)
> ZEDAT, Freie Universit?t Berlin Email loris.bennett at fu-
> berlin.de
>
> ______________________________________________
> R-help at 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.
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