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  1. RFortunes (rfortunes)'s status on Sunday, 27-Jan-2019 10:00:02 CET RFortunes RFortunes

    JPM Miao: Why can't R understand if(num!=NA)?
    Peter Dalgaard: Because comparison with an unknown value yields an unknown result.
    David Winsemius: Anything else would violate the Second Law of Thermodynamics. We cannot have comparisons reducing entropy, now can we? Uncertainty cannot run uphill.
    -- JPM Miao, Peter Dalgaard, and David Winsemius (on why is.na() is needed)
    R-help (May 2013) #Rstats

    Sunday, 27-Jan-2019 10:00:02 CET from mamot.fr permalink

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