[R] histogram bug?: type='count', unequal breaks

Deepayan Sarkar deepayan at stat.wisc.edu
Fri Dec 13 20:04:02 CET 2002


On Friday 13 December 2002 12:43 pm, scottyv at bell-labs.com wrote:
> I ask for a histogram of counts with slightly uneven breaks but
> histogram() ignores the 'type' argument and provides density scaling
> instead.
>
>    x = sample(1:3, 100, replace=TRUE)
>    histogram( ~ x, breaks=c(0,1.5,2.5,3.5), type='count')
>
> My real application has time data with month boundaries for the breaks
> and I DO want counts on the y-axis.
>
> A work-around is not difficult but shouldn't histogram honor the
> type argument when given?

Yes, it should, and it doesn't because of a bug in the released version of 
lattice. This should be fixed in the next release (hopefully sometime next 
week).

Deepayan




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