Posting rates [was Re: [R] Size of R user base]

[Douglas Bates]

Peter Dalgaard <p.dalgaard at biostat.ku.dk> writes:

> Douglas Bates <bates at stat.wisc.edu> writes:
> 
> > Gabor Grothendieck <ggrothendieck at myway.com> writes:
> > 
> > > P.S.  The following web page gives the number of messages per day over
> > > the last few days as a graph:
> > > 
> > > 	http://gmane.org/info.php?group=gmane.comp.lang.r.general
> > 
> > Interesting graphs.  Thanks for pointing out this URL.
> > 
> > Notice the very high posting/spam rates, which are a testament to the
> > effectiveness of the filters that Martin Maechler has installed on the
> > mailing list.
> 
> ...except that there seems to be something wrong with their graphs:
> The posting/spam curve looks identical to the postings curve, and
> according to the spam curve, the former should give a division by zero
> for most of the range.

Look carefully at the bottom plot.  It is two time-series plots
superimposed, not a plot of a ratio as the title indicates.