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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Data tablers<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does data.table now coerce factors to character variables when doing by summaries?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If so, is there any way to not allow this coercion?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Damian Betebenner<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal>Center for Assessment<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal>PO Box 351<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal>Dover, NH 03821-0351<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal><span style='color:navy'> <o:p></o:p></span></p><p class=MsoNormal>Phone (office): (603) 516-7900<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal>Phone (cell): (857) 234-2474<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal>Fax: (603) 516-7910<span style='color:navy'><o:p></o:p></span></p><p class=MsoNormal><span style='color:navy'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'><a href="mailto:dbetebenner@nciea.org"><span style='color:blue'>dbetebenner@nciea.org</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'><a href="http://www.nciea.org/"><span style='color:blue'>www.nciea.org</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:navy'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>