Re: Re: st: Popularity of R, SAS, SPSS, Stata, Statistica, S-PLUS updated

[Stas Kolenikov <skolenik@gmail.com>]

On Fri, Mar 25, 2011 at 8:52 AM, Muenchen, Robert A (Bob)
<muenchen@utk.edu> wrote:
> Does anyone know what percent of the total of the main repositories are at SSC? To find equivalent info for R I chose only the biggest, CRAN, and ran a program to count the unique package names (2,849 on 3/25). I then selected all 9 major repositories and ran it again (4,338). So while yearly total number of R packages is known only for CRAN, we can estimate that the growth curve shown in Figure 9 (http://r4stats.com/popularity) is 66% of the total. Individuals still have their own sets, but probably a relatively small number. I would *love* to have similar data for Stata!

A more or less complete list of KNOWN online resources is given at
http://stata.com/links/resources2.html. There are some isolated
off-mainstream developers that have their code on the web pages
without trying to integrate them into Stata search engine; they may
even distribute them as zip archives rather than net-aware packages.

Since this is all computer readable, the count of packages can be
automated. Some will be double counted at SSC, at Stata Journal (SSC
will likely have up to date packages), and at the author's webpages
(like GLLAMM). I would expect SSC to take something comparable to the
ratio CRAN/total R packages -- 60-70%, but I may be totally wrong.
That again may not be a very good figure: the top 100 downloaded
packages from SSC may represent 98% of the total downloaded packages
from all sources.

-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.

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