open All Channels
seplocked EVE Technology Lab
blankseplocked Median Price Feed
 
This thread is older than 90 days and has been locked due to inactivity.


 
Author Topic

Bellatroix
Gallente
Vogon Poetry Systems
Posted - 2008.02.04 18:47:00 - [1]
 

Edited by: Bellatroix on 15/02/2008 04:17:18
Hey Eve Techies,

Updated 2008-02-14 - new main page for median price info and price dumps: Bellatroix' Median Price Feeds. Now available are medians of every type in every region. I will likely be adding a little more information to these files in the future (data such as the number of buy orders seen and other information which will help intelligent use of the numbers). I am also likely to add gzipped versions of these files to save on bandwidth.

I've thrown together a small online app that retrieves median prices based on eve-central data. It's a little rough right now, but I believe it gets prices that are a little more resistant to skewing from stupidly high sell orders and low buy orders. I also believe that eve-central will be implementing medians in their feeds at some point in the future, but this can be a useful stopgap measure until that is actually finished. Usage is simple:

http://nonninja.net/eve/prices/median/{TYPEID}

So, for an Iteron I (a particularly skewed average sell price), the URL is:

http://nonninja.net/eve/prices/median/650

This returns a very, very simple XML document with the type id, median buy price, and median sell price.

Update: There's now two more URLs that contain all items that I have prices for:

http://nonninja.net/eve/prices/medians.xml (size: ~600k)
http://nonninja.net/eve/prices/medians.txt (size: ~100k)

These should be relatively simple to understand the structure and use for whatever you want. These files are generated daily - the generation timestamp is included in the XML file near the top.

This is currently looking at all orders seen in the last 3 months or so as reported to eve-central (I'm using the daily file dumps and import those into my own database at about 4am EST). It also is not currently able to filter by date or region as these will probably be handled by eve-central eventually.

Anyway, I threw this together for myself and have noticed more asset list applications popping up that have been running into similar price problems that I have so I though I'd just throw it out there for anyone to use. As usual with a service like this, please don't hammer my server too hard.

Bellatroix
Gallente
Vogon Poetry Systems
Posted - 2008.02.12 19:15:00 - [2]
 

Added full dumps of all items with prices. See original post.

Vessper
Indicium Technologies
Hephaestus Forge Alliance
Posted - 2008.02.12 20:42:00 - [3]
 

This is fantastic and exactly what I've been looking for - thanks!

What would be the chances of you adding the Minimum Sale price and the Maximum Buy price to those feeds? Maybe just the text version as it's a smaller download and won't use as much of your bandwidth Wink

Bellatroix
Gallente
Vogon Poetry Systems
Posted - 2008.02.12 21:16:00 - [4]
 

I'll look into some other stats, but I may or may not actually get around to it. Max buy price and min sell price are currently available from the eve-central feeds so I'd basically just be duplicating that information.

With that said, if there continues to be a desire for a single-file price dump and eve-central does not implement it, I'll look into providing more data in a similar format.

Thanks for your interest!

Vessper
Indicium Technologies
Hephaestus Forge Alliance
Posted - 2008.02.12 21:26:00 - [5]
 

Ok, thanks!

It is the single file dump I was interested in. I currently pull prices from Eve-Central on a "per-item" basis but I was going to write something to collect the lot. Guess you beat me to it but at least it saves me a job Very Happy

Althea Nar'agh
Aliastra
Posted - 2008.02.13 10:54:00 - [6]
 

Wow, cool, u figured out those prices nicely :)

And as soon as i read you post, i was like "hm... Vess will be interested in this..."
Go figure :)

Bellatroix
Gallente
Vogon Poetry Systems
Posted - 2008.02.15 04:51:00 - [7]
 

Bumping for new info in original post, primarily the new landing page with region specific data.

HyperBeanie
Phantom Squad
En Garde
Posted - 2008.03.04 08:55:00 - [8]
 

Not working bella! FIX IT ;)

Getting some strange errors trying to parse! Have you changed anything?

/Beanie

HyperBeanie
Phantom Squad
En Garde
Posted - 2008.03.04 12:07:00 - [9]
 

Seems like you delete the files before you update, could you "keep" the originals till the update has ended?

/Beanie

Bellatroix
Gallente
Vogon Poetry Systems
Posted - 2008.03.04 14:16:00 - [10]
 

Sorry Beanie - I think the files are OK now. I was playing with removal of non-gzipped versions of the files to save some space and it looks like I removed the primary files for yesterday while they were still live. I'll be more careful from now on. Thanks for the heads up as well :)

Serenity Steele
Dynamic Data Distribution
Posted - 2008.03.08 10:03:00 - [11]
 

Thanks Bellatroix. Very nice.



 

This thread is older than 90 days and has been locked due to inactivity.


 


The new forums are live

Please adjust your bookmarks to https://forums.eveonline.com

These forums are archived and read-only