hist: rel.freqs

Peter Dalgaard BSA p.dalgaard@biostat.ku.dk
23 Jan 1998 16:15:16 +0100


Philippe Lambert <plambert@ulg.ac.be> writes:

> 
> In R0.61,
> 
> In hist(), should the line
>   rel.freqs <- counts/(sum(x) * diff(breaks))
> computing the relative frequencies or height of the rectangles 
> in a histogram not be
>   rel.freqs <- counts/(sum(counts) * diff(breaks))
> instead, or do I misunderstand something?

Oops. You're right. Total area should be 1, not mean(x). Current code
mus give funny results if the mean is negative...

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

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