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<p>[QUOTE=&quot;Roerbakmix, post: 6636004, member: 100731&quot;]Thanks [USER=44357]@AncientJoe[/USER]. I think that&#039;s basically what auction houses are doing (that is, at least Leu). </p><p><br /></p><p><br /></p><p>You are of course right, and I do stress this point in my final paragraph:</p><p><br /></p><p><br /></p><p>I would be happy to perform such an analysis (I have made some attempts in the past using automated text mining algorithms), however the main problem is the broadness of the data. I was able to &#039;explain&#039; about 70% of the variance in the hammer price for some coin types, including variables such as assigned grade, comments (&#039;broken, holed, ...&quot;), provenance, etc. Also, it&#039;s difficult to extract the data: I used data from Sixbid, but this extraction of up to ~700 coin lots.[/QUOTE]</p><p><br /></p>

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