Incorrect results for some items at Rens

[nagledb]

I think I'm getting incorrect results on some items at Rens.

Here's the evepraisal I was looking at: http://evepraisal.com/a/dg0yn

And here are market exports from Rens for those items:
Heimatar-Amarr TIL-1 Nexus Chip-2017.11.14 191226.txt
Heimatar-AML Compact Omnidirectional Tracking Link-2017.11.14 191834.txt
Heimatar-Blue Pill-2017.11.14 191839.txt
Heimatar-Data Sheets-2017.11.14 191844.txt
Heimatar-Faint Epsilon Scoped Warp Scrambler-2017.11.14 191848.txt
Heimatar-Freed Slaves-2017.11.14 191853.txt
Heimatar-Freedom Fighters-2017.11.14 191858.txt
Heimatar-High-Tech Small Arms-2017.11.14 191903.txt
Heimatar-Limited Light Neutron Blaster I-2017.11.14 191907.txt
Heimatar-Medium Asymmetric Enduring Remote Shield Booster-2017.11.14 191912.txt
Heimatar-Modal Light Ion Particle Accelerator I-2017.11.14 191917.txt
Heimatar-Suppressed Targeting System I-2017.11.14 191921.txt
Heimatar-Ta3 Compact Ship Scanner-2017.11.14 191926.txt
Heimatar-Type-D Restrained Overdrive Injector-2017.11.14 191930.txt
Heimatar-Ukomi Superconductors-2017.11.14 191934.txt
Heimatar-Upgraded Explosive Deflection Amplifier I-2017.11.14 191939.txt

Some examples:

Amarr TIL-1 Nexus Chip is selling for 8m and buying for 10k, but the evepraisal says it's 1.1m sell and 1.3m buy.

AML Compact Omnidirectional Tracking Link is selling for 5k at the Rens hub, but 3.5k at Balginia (3 jumps away). The evepraisal is showing the 3.5k value. I thought the evepraisal was supposed to target the specific hub station, but maybe I misunderstood? The only buyer is at 1.5k at 5 jumps away, but evepraisal says it's buying at 400k.

Not all of them are wrong though. For example, the Blue Pill evepraisal matches the market.

[sudorandom]

It should be looking specifically at the Rens system to see if there are any market orders. If there are too few items to get a good judge of the price of an item, it will expand its search to the "Universe" selection in leu of giving back nothing. You can tell when this happens by looking at the item detail page under the Rens tab and you will see "Market Pricing (low market volume)":

• http://evepraisal.com/item/41031
• http://evepraisal.com/item/17793

Perhaps one improvement is to expand to orders within the region (in ren's case, Heimatar) and seeing if there are enough orders to get a representative price from there first.