[R] hist clarification
Deepayan Sarkar
deepayan.sarkar at gmail.com
Tue May 20 21:11:30 CEST 2008
On 5/20/08, John Gant <john.gant at gmail.com> wrote:
> Can someone help me with a misunderstanding I'm having with hist? I
> expected, from the example below, that the number of bins would always be 10
> and the length of the counts array the same. According to the help section
> 'breaks' can be a integer indicating the number of bins.
The help actually says:
breaks: one of:
* a vector giving the breakpoints between histogram
cells,
* a single number giving the number of cells for the
histogram,
* a character string naming an algorithm to compute the
number of cells (see 'Details'),
* a function to compute the number of cells.
In the last three cases the number is a suggestion only.
The last sentence explains your observation.
BTW, this was recently discussed:
https://stat.ethz.ch/pipermail/r-help/2008-May/162492.html
-Deepayan
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