[R] Grouped Histogram (colored)
x0rr0x
till.salzgeber at gmail.com
Fri Oct 17 20:07:24 CEST 2008
here are two graphs from spss which may help illustrate my needs ;-)
http://pics.foruni.de/getimg/balken_time_one_censored.jpg
http://pics.foruni.de/getimg/one_time_sample0_censored.jpg
thanks a lot for your time and energy!
Regards
Greg Snow-2 wrote:
>
> I don't understand what you want, do you want 3 different histograms on 1
> plot? Do you want it to look like a barplot with side by side bars (rather
> than stacked)?
>
> For labeling the colors, you can use the legend function to add a legend
> to a plot, or you can use the text function to place text directly on a
> plot.
>
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> greg.snow at imail.org
> 801.408.8111
>
>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>> project.org] On Behalf Of x0rr0x
>> Sent: Friday, October 17, 2008 3:02 AM
>> To: r-help at r-project.org
>> Subject: Re: [R] Grouped Histogram (colored)
>>
>>
>> first of all: thank you for your replies!
>>
>>
>> hadley wrote:
>> >
>> > On Thu, Oct 16, 2008 at 11:42 AM, x0rr0x <till.salzgeber at gmail.com>
>> wrote:
>> >>
>> >> Hi all,
>> >>
>> >> I'm trying to create a histogram which shows the frequency of
>> variables
>> >> within a certain timeframe.
>> >>
>> >> I've been using SPSS before, but I didn't quite like it...
>> >>
>> >> To describe my problem further here are some example variables:
>> >>
>> >> the "event" is actually a string which I recoded using:
>> >> [code]
>> >> data$event_class = as.numeric(as.factor(data$event))
>> >> [/code]
>> >> I've recoded them into numerics
>> >>
>> >>
>> >> csv:
>> >> [code]
>> >> time,event,event_class
>> >> 01,cookies,1
>> >> 05,cookies,1
>> >> 06,pie,2
>> >> 07,coffee,3
>> >> 08,cookies,1
>> >> 30,pie,2
>> >> 31,coffee,3
>> >> [/code]
>> >> and so on...
>> >>
>> >> Now I'd like to create a histogram where X is the time, the color of
>> the
>> >> area is the event_class
>> >> and Y is defined by the frequency of event_class around some
>> accumulated
>> >> time
>> >
>> > install.packages("ggplot2")
>> > library(ggplot2)
>> >
>> > qplot(time, fill = event, data = mydata, geom = "histogram")
>> >
>> > You can find out more about ggplot2 at http://had.co.nz/ggplot2 -
>> it's
>> > inspired by the Grammar of Graphics, which is also the theory that
>> > underlies SPSS's plotting systems.
>> >
>> > Hadley
>> >
>> > --
>> > http://had.co.nz/
>> >
>> > ______________________________________________
>> > R-help at 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.
>> >
>> >
>>
>> In install.packages("ggplot2") : package ‘ggplot2’ is not available
>> strange....
>>
>>
>> Greg Snow-2 wrote:
>> >
>> > Does this do what you want?
>> >
>> > colhist <- function(x,col){
>> > tmp <- hist(x,plot=F)
>> > br <- tmp$breaks
>> > w <- as.numeric(cut(x,br,include.lowest=TRUE))
>> > sy <- unlist(lapply(tmp$counts,function(x)seq(length=x)))
>> > sy <- sy[order(order(x))]
>> > plot( range(br), range( 0, sy ),
>> xlab=deparse(substitute(x)),
>> > ylab='Frequency', type='n')
>> > rect(br[w], sy-1, br[w+1], sy,
>> > col=col,
>> > border=NA)
>> > rect(br[-length(br)], 0, br[-1], tmp$counts)
>> > }
>> >
>> > x <- rnorm(75, rep( c(90,100,110), each=25), 5 )
>> > g <- rep( c('red','green','blue'), each=25 )
>> >
>> > colhist(x,g)
>> >
>> > note: this colhist function is a modified version of the one from the
>> help
>> > file for the tkBrush function in the TeachingDemos package.
>> >
>> > --
>> > Gregory (Greg) L. Snow Ph.D.
>> > Statistical Data Center
>> > Intermountain Healthcare
>> > greg.snow at imail.org
>> > 801.408.8111
>> >
>> >
>> >> -----Original Message-----
>> >> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>> >> project.org] On Behalf Of x0rr0x
>> >> Sent: Thursday, October 16, 2008 10:42 AM
>> >> To: r-help at r-project.org
>> >> Subject: [R] Grouped Histogram (colored)
>> >>
>> >>
>> >> Hi all,
>> >>
>> >> I'm trying to create a histogram which shows the frequency of
>> variables
>> >> within a certain timeframe.
>> >>
>> >> I've been using SPSS before, but I didn't quite like it...
>> >>
>> >> To describe my problem further here are some example variables:
>> >>
>
>> >> the "event" is actually a string which I recoded using:
>> >> [code]
>> >> data$event_class = as.numeric(as.factor(data$event))
>> >> [/code]
>> >> I've recoded them into numerics
>> >>
>> >>
>> >> csv:
>> >> [code]
>> >> time,event,event_class
>> >> 01,cookies,1
>> >> 05,cookies,1
>> >> 06,pie,2
>> >> 07,coffee,3
>> >> 08,cookies,1
>> >> 30,pie,2
>> >> 31,coffee,3
>> >> [/code]
>> >> and so on...
>> >>
>> >> Now I'd like to create a histogram where X is the time, the color of
>> >> the
>> >> area is the event_class
>> >> and Y is defined by the frequency of event_class around some
>> >> accumulated
>> >> time
>> >>
>> >>
>> >>
>> >> In SPSS I used this:
>> >> Graphs -> Chart Builder
>> >> Gallery->Histogram
>> >> use some horizontal histogram
>> >> put "time" on the x-axis
>> >> select "grouping/stacking variables" in the "groups/point id" tab
>> >> and then set "Stack: set-color" to event_class
>> >> the y-axis will be automatically set to "histogram"
>> >>
>> >> thanks a lot in advance!
>> >>
>> >> Regards,
>> >> - x0rr0x
>> >> --
>> >> View this message in context: http://www.nabble.com/Grouped-
>> Histogram-
>> >> %28colored%29-tp20015941p20015941.html
>> >> Sent from the R help mailing list archive at Nabble.com.
>> >>
>> >> ______________________________________________
>> >> R-help at 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.
>> >
>> > ______________________________________________
>> > R-help at 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.
>> >
>> >
>>
>> not quiet.
>>
>> maybe I described it wrong. the occurences of event_class shouldn't add
>> up
>> till the end. the graph should create blocks in certain time frames and
>> then
>> display how often the event_class turn up during this timeframe.
>>
>> also, is there a way to label the colors, preferably with their
>> "data$event"
>> strings?
>>
>>
>> --
>> View this message in context: http://www.nabble.com/Grouped-Histogram-
>> %28colored%29-tp20015941p20029605.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at 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.
> ______________________________________________
> R-help at 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.
>
>
--
View this message in context: http://www.nabble.com/Grouped-Histogram-%28colored%29-tp20015941p20038094.html
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