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Difference between NULL and NA?
Good morning. I knew the method isnull, but what's the difference with isna? And does exist also "isnan" to know if a value is "Not a Number"? Thank you
2 answers ( 0 marked as helpful)
Both are used to represent missing or undefined values. NULL represents the null object, it's a reserved word. NULL is perhaps returned by expressions and functions, so that values are undefined. NA is a logical constant of length 1, which contains a missing value indicator.
yes