Hi all,
Please consider the following code:
require(plotrix)
l <- list(rnorm(50),rnorm(50,sd=2),rnorm(50,mean=3))
multhist(l)
I have two things I need help with:
(1) In the output, there are empty spaces on the x-axis. How would I eliminate
these spaces? I want a nice, smooth, empty-spaceless x-axis.
(2) How could I add tracing lines to each histogram? I am undoubtedly using the
wrong terminology. What I want to do is something like this:
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=55
Note that each histogram has a tracing line that summarizes the histogram.
In summary, I'd like to modify the code above to (1) get rid of the dead
spaces
on the x-axis, and (2) add lines that traces to each of the histograms therein
(all on the same graph).
I am very bad at using R graphics at this point, so I need some pretty serious
hand-holding. Exact code that gets the job done would be most useful for me.
Thanks very much in advance!
Sincerely,
-----------------------------------
Josh Banta, Ph.D
Center for Genomics and Systems Biology
New York University
100 Washington Square East
New York, NY 10003
Tel: (212) 998-8465
http://plantevolutionaryecology.org
[[alternative HTML version deleted]]
Josh- The link you included with your post provides the code for the example plot. Simply click on the icon in the "Download Source Code" section. I think you'll be able to learn a lot by playing with that source code. -tgs On Thu, Sep 16, 2010 at 9:40 AM, Josh B <joshb41@yahoo.com> wrote:> Hi all, > > Please consider the following code: > > require(plotrix) > > l <- list(rnorm(50),rnorm(50,sd=2),rnorm(50,mean=3)) > multhist(l) > > I have two things I need help with: > > (1) In the output, there are empty spaces on the x-axis. How would I > eliminate > these spaces? I want a nice, smooth, empty-spaceless x-axis. > > (2) How could I add tracing lines to each histogram? I am undoubtedly using > the > wrong terminology. What I want to do is something like this: > http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=55 > Note that each histogram has a tracing line that summarizes the histogram. > > In summary, I'd like to modify the code above to (1) get rid of the dead > spaces > on the x-axis, and (2) add lines that traces to each of the histograms > therein > (all on the same graph). > > I am very bad at using R graphics at this point, so I need some pretty > serious > hand-holding. Exact code that gets the job done would be most useful for > me. > Thanks very much in advance! > > Sincerely, > ----------------------------------- > Josh Banta, Ph.D > Center for Genomics and Systems Biology > New York University > 100 Washington Square East > New York, NY 10003 > Tel: (212) 998-8465 > http://plantevolutionaryecology.org > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. >[[alternative HTML version deleted]]
Hi Josh,
You can go to http://addictedtor.free.fr/graphiques/sources/source_55.R and
see the source code there. Now, if you want to run the example directly from
the R console, something along the lines of
source('http://addictedtor.free.fr/graphiques/sources/source_55.R')
might work.
HTH,
Jorge
On Thu, Sep 16, 2010 at 9:40 AM, Josh B <> wrote:
> Hi all,
>
> Please consider the following code:
>
> require(plotrix)
>
> l <- list(rnorm(50),rnorm(50,sd=2),rnorm(50,mean=3))
> multhist(l)
>
> I have two things I need help with:
>
> (1) In the output, there are empty spaces on the x-axis. How would I
> eliminate
> these spaces? I want a nice, smooth, empty-spaceless x-axis.
>
> (2) How could I add tracing lines to each histogram? I am undoubtedly using
> the
> wrong terminology. What I want to do is something like this:
> http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=55
> Note that each histogram has a tracing line that summarizes the histogram.
>
> In summary, I'd like to modify the code above to (1) get rid of the
dead
> spaces
> on the x-axis, and (2) add lines that traces to each of the histograms
> therein
> (all on the same graph).
>
> I am very bad at using R graphics at this point, so I need some pretty
> serious
> hand-holding. Exact code that gets the job done would be most useful for
> me.
> Thanks very much in advance!
>
> Sincerely,
> -----------------------------------
> Josh Banta, Ph.D
> Center for Genomics and Systems Biology
> New York University
> 100 Washington Square East
> New York, NY 10003
> Tel: (212) 998-8465
> http://plantevolutionaryecology.org
>
>
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
>
[[alternative HTML version deleted]]
On 09/16/2010 11:40 PM, Josh B wrote:> Hi all, > > Please consider the following code: > > require(plotrix) > > l<- list(rnorm(50),rnorm(50,sd=2),rnorm(50,mean=3)) > multhist(l) > > I have two things I need help with: > > (1) In the output, there are empty spaces on the x-axis. How would I eliminate > these spaces? I want a nice, smooth, empty-spaceless x-axis. > > (2) How could I add tracing lines to each histogram? I am undoubtedly using the > wrong terminology. What I want to do is something like this: > http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=55 > Note that each histogram has a tracing line that summarizes the histogram. > > In summary, I'd like to modify the code above to (1) get rid of the dead spaces > on the x-axis, and (2) add lines that traces to each of the histograms therein > (all on the same graph). > > I am very bad at using R graphics at this point, so I need some pretty serious > hand-holding. Exact code that gets the job done would be most useful for me. > Thanks very much in advance! >Hi Josh, You can get rid of the spaces like this: multhist(l,space=c(0,0)) By "tracing lines" I think you mean smoothed densities of your three samples. The addictedtor site seems to be down at the moment, so I can't check the page suggested by Thomas and Jorge. This is a bit more complicated, as the functions underlying multhist don't usually place the bars at values corresponding to the intervals you need to calculate. Perhaps if you use multhist to calculate the histograms: lhist<-multhist(l,plot.it=FALSE) Then plot the histogram with barp instead (barp places bars on integer values by default and this happens to match your breakpoints): barp(lhist$out,names.arg=seq(-5.5,4.5,by=1), col=c("gray20","gray50","gray80"))) calculate the density: l1dens<-density(l[[1]]) and then display the lines: # notice the x offset and the rescaling of the density values lines(l1dens$x+6.5,rescale(l1dens$y,c(0,20))) repeating for the other two samples, you can get the plot you want. Jim