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alt - script and chart function

The alt function returns the first of the parameters that has a valid number representation. If no such match is found, the last parameter will be returned. Any number of parameters can be used.


alt(case1[ , case2 , case3 , ...] , else)


The alt function is often used with number or date interpretation functions. This way, QlikView can test different date formats in a prioritized order. It can also be used to handle NULL values in numerical expressions.