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locksley
I made this in rails over a couple of weekends after learning how to code late last year. The inspiration came from wanting to buy an iPhone 5 from ebay but not knowing what a fair price should be. After a writing a script to calculate this for myself, I thought it could be useful for others too and abstracted it into its current incarnation.

Any feedback would be fantastic, especially on UX!

Pezmc
Perhaps implement a cache for the results? It already seems to be being hit quite hard!
byoung2
I keep getting an error:

Application Error

An error occurred in the application and your page could not be served. Please try again in a few moments.

If you are the application owner, check your logs for details.

bdfh42
Sadly just reporting an error when I tried.
klous
Can you dive more into the technical details of this, eg. are you using the ebay API or are you scraping the data?
locksley
Yeah sure, it's a scraper. The histogram is then built out of the 200 results retrieved from 'completed listings', minus the ones that weren't sold. The X/Y scatter plot is built from the 200 upcoming results, intended as a way to find good bargains after you know the median/mean price.
klous
And the scraper is using a "logged in" ebay account, correct? Because I believe to view completed listings you need to be logged in.
toki5
/results?utf8=✓

This made me laugh aloud.