程序包 org.meteoinfo.data.dataframe.impl

接口 Aggregate<I,O>

类型参数:

I - the type of the input values

O - the type of the result

所有超级接口:

Function<List<I>,O>

所有已知实现类:

Aggregation.Collapse, Aggregation.Count, Aggregation.Describe, Aggregation.Kurtosis, Aggregation.Max, Aggregation.Mean, Aggregation.Median, Aggregation.Min, Aggregation.Percentile, Aggregation.Product, Aggregation.Skew, Aggregation.StdDev, Aggregation.Sum, Aggregation.Unique, Aggregation.Variance

public interface Aggregate<I,O>
extends Function<List<I>,O>

A function that converts lists of data frame values to aggregate results.

Implementors define Function.apply(Object) to accept a list of data frame values as input and return an aggregate result.

方法概要

从接口继承的方法 org.meteoinfo.data.dataframe.impl.Function

apply