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is_infinite(x) – Determine if x is infinite. Platforms: WhereOS, Spark, Hive Class: hivemall.tools.math.IsInfiniteUDF More functions

is_nan(x) – Determine if x is not-a-number. Platforms: WhereOS, Spark, Hive Class: hivemall.tools.math.IsNanUDF More functions

is_stopword(string word) – Returns whether English stopword or not Platforms: WhereOS, Spark, Hive Class: hivemall.tools.text.StopwordUDF

instr(str, substr) – Returns the (1-based) index of the first occurrence of `substr` in `str`.

int(expr) – Casts the value `expr` to the target data type `int`. Platforms: WhereOS, Spark,

intersect_array(array1, array2, …) – Returns the intersection of a set of arrays Platforms: WhereOS, Spark,