why data frame's logical index isnt working

Thu, Apr 7, 2016 6:46 PM

data.frame.$columnToAdd["CurrentColumnName" == "ConditionMet"] <- 1

Can someone please explain to me why the above command gives all NAs to
columnToAdd?  I thought this was possible in R to do logical expression in
the index of a data frame

Thread (5 messages)

Michael Artz why data frame's logical index isnt working Apr 7 Richard M. Heiberger why data frame's logical index isnt working Apr 7 David Winsemius why data frame's logical index isnt working Apr 7 Michael Artz why data frame's logical index isnt working Apr 7 David Winsemius why data frame's logical index isnt working Apr 7