[Rd] hist (PR#4395)
It is not really a bug but a strange choice. When the option freq=F chosen, hist should plot relative frequency. It plots proportional to relative frequency by the factor of bin width. Is there a reason for this? A more normal choice seems to be to have it independent of the bin width. Yash Mittal University of Arizona This message was sent using IMP, the Internet Messaging Program. __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] hist (PR#4395)
On Thursday 02 October 2003 20:48, [EMAIL PROTECTED] wrote: It is not really a bug but a strange choice. So why do you file it as a bug? When the option freq=F chosen, hist should plot relative frequency. It plots proportional to relative frequency by the factor of bin width. Is there a reason for this? Yes. A more normal choice seems to be to have it independent of the bin width. No, because then the histogram could not be used as a density estimate which is possible if the relative frequencies are proportional to the are and not the height of the segments. Z __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] hist (PR#4395)
On Thu, 2 Oct 2003 20:48:33 +0200 (MET DST), [EMAIL PROTECTED] wrote : It is not really a bug but a strange choice. Please don't post discussion to r-bugs. Each post to r-bugs ends up in the bug repository, and requires manual handling. When the option freq=F chosen, hist should plot relative frequency. It plots proportional to relative frequency by the factor of bin width. Is there a reason for this? A more normal choice seems to be to have it independent of the bin width. No, that would result in misleading plots. For example, if one bar is twice as wide as another but they are the same height, then the natural interpretation is that the wide bar represents twice as many observations, or twice the probability. This is the way densities work, and is how histograms should work. (However, since not everyone interprets histograms this way, it's safest not to use variable width bars.) If you just want to plot some bars where the area of the bar has no meaning, use barplot() instead of hist(). Duncan Murdoch __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
