Editing 1845: State Word Map

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==Explanation==
 
==Explanation==
  
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This is another of the many comics where [[Randall]] used a map of the United States for his joke (see below for examples).
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This is another of the many comics where [[Randall]] used a map of America for his joke (see below for examples).
  
 
Similar in spirit to [[1138: Heatmap]], this comic pokes fun at many maps that attempt to use data to discern unique characteristics about various sub-regions, in this case {{w|U.S. state|American states}}. This map may have been inspired by [https://twitter.com/GoogleTrends/status/869624196921303040 this map] posted on Twitter by Google Trends the day before the comic was posted. Many web companies use maps like this in viral marketing, but the methodology behind them is pretty weak. The random noise in the data will mean that there will be variations between states even if there is no underlying pattern - and this can be further boosted by statistical tricks. A common one is to show the "most characteristic" or "most distinctive" term for each state. For instance, [http://www.businessinsider.com/most-common-causes-of-death-in-each-state-2014-6?IR=T the most common cause of death is heart disease or cancer] in every US state, but this makes for a boring map. Looking at the [https://www.cdc.gov/pcd/issues/2015/14_0395.htm most distinctive cause of death] produces a more interesting map, but it highlights very minor trends - Louisiana is marked as having syphilis as its most distinctive cause of death, even though [https://www.cdc.gov/nchhstp/stateprofiles/pdf/louisiana_profile.pdf only 15 Louisianans in every 100,000 have the disease] and there were only 22 syphilis deaths in the state over a whole decade. These maps can give a misleading impression of huge variation between states that doesn't really exist.
 
Similar in spirit to [[1138: Heatmap]], this comic pokes fun at many maps that attempt to use data to discern unique characteristics about various sub-regions, in this case {{w|U.S. state|American states}}. This map may have been inspired by [https://twitter.com/GoogleTrends/status/869624196921303040 this map] posted on Twitter by Google Trends the day before the comic was posted. Many web companies use maps like this in viral marketing, but the methodology behind them is pretty weak. The random noise in the data will mean that there will be variations between states even if there is no underlying pattern - and this can be further boosted by statistical tricks. A common one is to show the "most characteristic" or "most distinctive" term for each state. For instance, [http://www.businessinsider.com/most-common-causes-of-death-in-each-state-2014-6?IR=T the most common cause of death is heart disease or cancer] in every US state, but this makes for a boring map. Looking at the [https://www.cdc.gov/pcd/issues/2015/14_0395.htm most distinctive cause of death] produces a more interesting map, but it highlights very minor trends - Louisiana is marked as having syphilis as its most distinctive cause of death, even though [https://www.cdc.gov/nchhstp/stateprofiles/pdf/louisiana_profile.pdf only 15 Louisianans in every 100,000 have the disease] and there were only 22 syphilis deaths in the state over a whole decade. These maps can give a misleading impression of huge variation between states that doesn't really exist.

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