User talk:Crox

Happy Birthday? Juventas 00:28, 11 April 2010 (UTC)

it was a few days ago, but thanks! --Crox 21:42, 11 April 2010 (UTC)

Thanks for the Hashcard of 2010-07-13 45,7- looks like a beautiful place! MagicIan 19/07/10 21:38 (GMT)

You are welcome. I hope you were able to decypher my script, I wrote it on the train down to Zermatt, which proved to be a challenge :o) --Crox 21:00, 20 July 2010 (UTC)

to check: Public_transport_probability

http://wiki.xkcd.com/geohashing/30W_Time_Zone_Rule#Testing_for_30W_compliance

Source error

Hi Crox. I've been building a small database of Dow openings. While checking the values I found that some of your Dow holidays are filled in with the closing value of the previous day. E.g. 2008-11-27, 2008-12-25, and several more following those. While I'm at it, how much discrepancy do you see on 2008-07-03? That's the only difference from Peeron/Google (back to the invention of the geohash) after fixing the more obvious stuff. Edit: Happy birthday, maybe, seeing the above. :-) --62.163.112.228 17:43, 5 April 2011 (EDT)

Hello 62.163.112.228, thanks for taking the time to report this and also for the birthday wishes :o)

For 2008-07-03, I've stored the following opening values:

 11215.9967544 from djindexes.com
 11216.00 from SunGard
 11216.00 from google.com/finance

If I remember correctly, Yahoo had a different value for that day, and I removed it manually. If you have a list of the other fixes you've done, or all historical Dow holidays, I'd be happy to have it. --Crox 16:30, 6 April 2011 (EDT)

Maybe I shouldn't have used the word database. It's more of a list of a few hundred Dow days, in an attempt to have a more accurate list than Yahoo's CSV (plotting nearby hashes to look for interesting ones is no fun when many are wrong). It currently runs from 2008-05-21 until now. I didn't keep the original data, but I think it only differs from your data on holidays, and definitely only from Peeron on 2008-07-03. You could diff against Peeron and see if it's all on holidays. I think checking for absent days in Yahoo's CSV also works.

Hmm, now that I look at my list, I think my first day — 2008-05-21, when the comic was posted — actually has the highest value. I guess geohashing is bad for the economy. --62.163.112.228 10:13, 7 April 2011 (EDT)

historical Dow data?

I'm interested in doing some serious retrohashing number crunching, and would like to get copies of your historical Dow opening data. Is this feasible? JesseW 02:02, 23 May 2012 (EDT)