[R] frequencies

Adaikalavan Ramasamy ramasamy at cancer.org.uk
Mon Jun 21 15:19:49 CEST 2004


See the example in help("cut"). You will require the option right=FALSE
in cut() or you can try hist.

x <- abs(rnorm(100))
table( cut(x, seq(0, max(ceiling(x)), by=0.5), right=FALSE ))
hist(x, breaks=seq(0, max(ceiling(x)), by=0.5), plot=FALSE)


On Mon, 2004-06-21 at 14:01, Silvia Kirkman wrote:
> Hi
> 
> I have a set of fish lengths (cm) which I'd like to
> have divided into bins as specified by myself. I want
> to classify my bins as:
> 
> 0<=x<0.5
> 0.5<=x<1
> 1<=x<1.5
> 1.5<=x<2
> and so on...
> 
> I'd like the frequencies to be given as a vector
> because I need to use these values for further
> analysis.
> 
> Please can someone help me with this. I can't find a
> command in R that allows one to do this.
> 
> Many thanks.
> 
> Silvia Kirkman
> 
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