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Re: Perl and open source

by brian_d_foy (Abbot)
on Nov 13, 2004 at 16:57 UTC ( #407613=note: print w/replies, xml ) Need Help??

in reply to Perl and open source

I don't really trust any of those numbers, although the basic conclusion is probably right.

Simply counting projects doesn't mean anything on either CPAN or SourceForge. I can register a module or a project then do nothing with it, or I can register a single project, like "brian d foy's Perl modules" that is really many separate projects. The CPAN numbers are similarly skewed by failed starts, abandoned projects, and inactive developers.

I don't think that the conclusions are wrong, though. Most metrics would show that Java is more popular (there is only one print magazine for Perl, but shelves full for Java, for instance).

At some point, I think we have to look at the quality of the project too. Should a project with lots of CERT advisories count as much as a project that hardly ever breaks? Should a project with 10 downloads a year count as much as one with a million? Should a project that only compiles on one operating system if the moons are aligned and it is tuesday count as much as a project that runs on just about anything? Should "Hello World!" count as much as apache?

At the New York Perl Mongers meeting last month, we talked a bit about collecting adjusted statistics about CPAN. It's not enough to just count things. We have to weed out PAUSE accounts who never logged in or uploaded a module, modules that never made it past their first upload, and so on. We also should look at how attention a distribution gets by analyzing frequency of uploads, number of co-maintainers, how many other distributions require it, and so on. If I only had enough time...

brian d foy <>

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Re^2: Perl and open source
by exussum0 (Vicar) on Nov 14, 2004 at 02:21 UTC
    You can always use the number for, and against perl. I wouldn't bother with either, since you can do just that.

    perl and c are two totally different languages in that one is precompiled and perl is "compiled" when "run". One needs an OS as an interpreter, the other runs on an interpreter that runs on the OS. Similar to java, but java is compiled into a byte language that finishes getting compiled on run. But perl is not backed by uber large companies like sun, though c is very old, and c++ was done by a reasearch company. Go on and on and on. Don't forget Church's thesis which one can simply say, it doesn't matter, since they are all relatively equal, and do the same thing, which would almost make the statistics valid, if everything could be linearly comparable like that. :)

    The fact that perl has so much to offer, and so many people care and do with it, is all that matters. "A lot of people use it" is all we need, eh?

    Then B.I. said, "Hov' remind yourself nobody built like you, you designed yourself"

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