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Price of Weed
Price of Weed (or priceofweed.com) is a user-generated database of marijuana prices in the United States, Canada and other countries. Users may submit prices and quantities for transactions and their location is geolocated in order to generate a price index for states and cities. While user-generated prices have no inherent check on accuracy, the criminal status of marijuana in many countries means a formal price index may be difficult to construct.〔(【引用サイトリンク】date=February 14, 2012 )〕
In August 2011, Matthew Zook, a professor of geography at the University of Kentucky, generated a detailed heatmap using data from the site.〔(【引用サイトリンク】author=Zook, Matthew )〕 The map was included in an issue of Wired and drew attention to Price of Weed from Barry Ritholtz's Big Picture and Flowing Data.〔(【引用サイトリンク】work=Flowing Data )〕 In 2014, Allen B. Downey, a professor from Olin College utilized data from Price of Weed in his book Think Stats: Probability and Statistics for Programmers (Second Edition).〔(【引用サイトリンク】author=Downey, Allen )〕 In May 2015, Frank Bi of Forbes published a piece title All 50 States Ranked By The Cost Of Weed. In June 2015, The Washington Post generated a detailed infographic portraying pricing data from 8 major US cities. This marks the first data shared publicly portraying a time series of data by city from Price of Weed. In August 2015, Mingshu Wang from The Department of Geography at University of Georgia generated a detailed graphic portraying the crowdsourced data from The Price of Weed.〔(【引用サイトリンク】author=Wang, Mingshu )〕
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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