[R] Histogram

[Uwe Ligges]

Cristian Pattaro wrote:

> Dear all,
> 
> I have a surprising problem with the representation of frequencies in a 
> histogram.
> 
> Consider, for example, the R code:
> 
> b<-rnorm(2000,3.5,0.3)
> hist(b,freq=F)
> 
> When I plotted the histogram, I expected that values in the y-axis (the 
> probability) varied between 0 and 1. Instead, they varied within the 
> range 0-1.3.
> 
> Have you got any suggestion for obtaining a correct graph with 
> probability within the range 0-1?


Note that width * height (and *not* the height solely) corresponds to 
the probability in a histogram.

Uwe Ligges



> Thank you very much!
> 
> Bests
> /Cristian/
> 
> =============================================
> Cristian Pattaro
> =============================================
> Unit of Epidemiology & Medical Statistics
> Department of Medicine and Public Health
> University of Verona
> 
> http://biometria.univr.it
> cristian at biometria.univr.it
> =============================================
> 
> 
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