Merge and aggregate datasets: Difference between revisions

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:- load_csv('patient.csv',patient(integer,atom)).
:- load_csv('patient.csv',patient(integer,atom)).


is_nan(Number) :- number_codes(Number, [110,97,110|_]). %% "nan"
is_nan(Number) :- X is Number, X =\= Number.
is_nan(Number) :- number_codes(Number, [78,97,78|_]). %% "NaN"


summaryDates(Id, Lastname, LastDate) :-
summaryDates(Id, Lastname, LastDate) :-