R help - Jun 2006 - distribution of daily rainfall values in binned categories

Hi,

I'm a newbie in using R and I would like to have a few
clues as to how I could compute and plot a
distribution of daily rainfall intensity in different
categories.  I have daily values (mm/day) for several
years and I need to show the frequency of 0-1, 1-2.5,
2.5-5, 5-10, 10-20, 20+ mm/day.  Can this be done
easily?

Thanks,
Etienne

?hist

& read about "breaks"

On 6/27/06, etienne <etiennesky@yahoo.com> wrote:
>
> Hi,
>
> I'm a newbie in using R and I would like to have a few
> clues as to how I could compute and plot a
> distribution of daily rainfall intensity in different
> categories.  I have daily values (mm/day) for several
> years and I need to show the frequency of 0-1, 1-2.5,
> 2.5-5, 5-10, 10-20, 20+ mm/day.  Can this be done
> easily?
>
> Thanks,
> Etienne
>
> ______________________________________________
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>


-- 
HTH,
Jim Porzak
Loyalty Matrix Inc.
San Francisco, CA

	[[alternative HTML version deleted]]

Hi Etienne,

Somebody asked a somehow related question recently.  
http://tolstoy.newcastle.edu.au/R/help/06/06/29485.html

Take a look at cut? table? and barplot?
i.e.
#Creates fake data from uniform(0,30)

x=runif(50, 0,30)

#Creates categories
rain=cut(x,breaks=c( 0, 1,2.5,5, 10, 20, Inf))

#Creates contingency table of categories
tab=table(rain)

#Plots frequencies of rainfall
barplot(tab)


I hope this helps!

Francisco

Dr. Francisco J. Zagmutt
College of Veterinary Medicine and Biomedical Sciences
Colorado State University



>From: etienne <etiennesky at yahoo.com>
>To: r-help at stat.math.ethz.ch
>Subject: [R] distribution of daily rainfall values in binned categories
>Date: Tue, 27 Jun 2006 11:28:59 -0700 (PDT)
>
>Hi,
>
>I'm a newbie in using R and I would like to have a few
>clues as to how I could compute and plot a
>distribution of daily rainfall intensity in different
>categories.  I have daily values (mm/day) for several
>years and I need to show the frequency of 0-1, 1-2.5,
>2.5-5, 5-10, 10-20, 20+ mm/day.  Can this be done
>easily?
>
>Thanks,
>Etienne
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide! 
>http://www.R-project.org/posting-guide.html