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May 23, 2017 at 12:39 history edited CommunityBot
replaced http://stackoverflow.com/ with https://stackoverflow.com/
Apr 15, 2015 at 9:48 history closed Scortchi Duplicate of If a factor variable is to be dropped in model selection, should all levels be dropped simultaneously? If so, why? [duplicate]
Feb 27, 2015 at 20:20 review First posts
Feb 27, 2015 at 20:43
Feb 27, 2015 at 20:15 history asked xyin CC BY-SA 3.0