Constructor and Description |
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typed() |
Modifier and Type | Method and Description |
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static <T> TypedColumn<T,java.lang.Double> |
avg(MapFunction<T,java.lang.Double> f)
Average aggregate function.
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static <T> TypedColumn<T,java.lang.Long> |
count(MapFunction<T,java.lang.Object> f)
Count aggregate function.
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static <T> TypedColumn<T,java.lang.Double> |
sum(MapFunction<T,java.lang.Double> f)
Sum aggregate function for floating point (double) type.
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static <T> TypedColumn<T,java.lang.Long> |
sumLong(MapFunction<T,java.lang.Long> f)
Sum aggregate function for integral (long, i.e.
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public static <T> TypedColumn<T,java.lang.Double> avg(MapFunction<T,java.lang.Double> f)
public static <T> TypedColumn<T,java.lang.Long> count(MapFunction<T,java.lang.Object> f)
public static <T> TypedColumn<T,java.lang.Double> sum(MapFunction<T,java.lang.Double> f)
public static <T> TypedColumn<T,java.lang.Long> sumLong(MapFunction<T,java.lang.Long> f)