[seqfan] Re: Excessive b-file, perhaps?
Tom Duff
td at pixar.com
Fri Nov 16 20:44:34 CET 2012
Quoth David Wilson <davidwwilson at comcast.net>:
> Perhaps A000959 has an unduly large b-file (200K terms). It bogs the
> graph, and even downloading the b-file is noticeably slower than
> instantaneous.
>
> I don't mind having the file around, but aren't 10K terms sufficient for
> a b-file?
It is obviously useful to have as many terms for each sequence as we can
afford to store. The b file for A000959 is only 2.8 MB. If the average
b-file were that long, it would only take about 600 GB to store them all.
Certainly it would be useful to return shorter results to casual users
(including the graphs.)
A reasonable compromise might be for the server to only give you the first
few thousand terms if you ask to see http://oeis.org/b000959.txt but have
other means to get the whole thing. http://oeis.org/b000959.txt?all might
be an idea. I am uninterested in the particular syntax, but you could,
for example allow asking for ranges of terms:
http://oeis.org/b000959.txt?10000-1000000 and even other, more complex
queries. Depends on how much the person that implements it is up for.
While we're asking for implausible features, I would love to be able to
get a bulk download of all the b files for exploratory work. (Maybe
there's an easy way to do that already and I just don't know about it. I
can certainly write a short shell script that does the job, though I would
be loath to beat on the server that hard.)
--
Tom Duff. Two red 10' stepladders used to be behind the Castle.
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