v0.0.15 was deployed today.
Region level price and trade history back until 2003 now available. Yes, 15 years of history!
In the Talking in Stations Podcast episode from 30.04.2017 @CCP_Quant stated that CCP had the price history back until 2003 and potentially could make this available for players. Among others A4E reminded CCP of this statement via Twitter and indeed with the Febuary 2018 MER the 16 GB CSV export with 269.257.439 rows of data has been released.
A4E has imported that data into its database and made it now available in its graphs for everyone to analyze. For example you can use it to predict future price movements based on a looong history. Or identify repeating patterns for example based in the slow summers. Or check on inflation. Or just marvel at the history of EVE Online and its market.
Tritanium price and trade history 2003 - 2018 (direct link)
Since looking at the raw data on such a large scale doesn’t produce nice looking graphs, v0.0.15 also adds averaging to the commodity details page.
New “Average across days” selection
If you select averaging across 14 days, then A4E takes the values of the 1st to 14th day, creates the average and stores it as the 14th day. Thus you have to keep the resulting effect in mind and not draw false conclusions.
For example from the left extract of the averaged tritanium history you might conclude that with the Revelations I expansion there was a slow rise of price. In fact the raw, un-averaged graph shows that on patch day there was a price spike.
Comparison averaged vs. un-averaged graph
Previously you could only view market commodities that CCP had flagged as “published”. However since it might be interesting for some to view the price history of legacy types, with v0.0.15 also types without the published-flag may be selected. However only via the typeID URL parameter.
Main motivation was PLEX. While CCP interestingly has back-filled the price for the new PLEX with typeID 44992, some might wanna feel nostalgic viewing the “real” PLEX price via the old typeID 29668.
As always, eager to get feedback or further suggestions.