On Wed, 6 Jan 1999, Jean-Marc Dubois wrote:
> Hello and happy new year to all !
>
> I use analog to do the following :
> 1/ have general stats (no exclude, no include)
>
> 2/ have stats on internal user only
> HOSTINCLUDE *.dcav.u-bordeaux2.fr
> HOSTINCLUDE <IP number in case they were not looked up>
>
> 3/ have stats from robots/spiders only
> BROWINCLUDE "Alta Vista*"
> BROWINCLUDE Lycos*
>
> 4/ have stats from external user except robots/spiders
> HOSTEXCLUDE *.dcav.u-bordeaux2.fr
> HOSTEXCLUDE <IP number in case they were not looked up)
>
> BROWEXCLUDE "Alta Vista*"
> BROWEXCLUDE Lycos*
>
> Doing so I hoped to get results : 2/ + 3/ + 4/ = 1/
>
> But this is not the case, 2/ + 3/ + 4/ is GREATER THAN 1/.
>
> So my question is quite simple : is the filtering process used by analog not
> as simple as I thought ?
What has happened is that requests without a browser are counted in both 3/
and 4/. This is a weakness in the IN/EXCLUDE mechanism.
Sorry about that.
--
Stephen Turner [EMAIL PROTECTED] http://www.statslab.cam.ac.uk/~sret1/
Statistical Laboratory, 16 Mill Lane, Cambridge CB2 1SB, England
"Ad infinitum, if not ad nauseam." (Interviewee, BBC Radio 4)
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