설문 종료
설문
Which of the following is not really a missing value? (Or, which option is false?)
ismissing( { [ ] } )
26%
ismissing( NaN )
18%
ismissing( NaT )
11%
ismissing( missing )
21%
ismissing( categorical(missing) )
9%
ismissing( { '' } ) % 2 apostrophes
16%
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댓글 수: 3
Well, that is how ismissing is defined.
I did not expect that.
These are getting harder and harder (and more fun)! 🤔