程序包 org.apache.flink.ml

类 Functions

java.lang.Object

org.apache.flink.ml.Functions

public class Functions
extends Object

Built-in table functions for data transformations.

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	Functions.ArrayToVectorFunction	A ScalarFunction that converts a column of arrays of numeric type into a column of DenseVector instances.
static class	Functions.VectorToArrayFunction	A ScalarFunction that converts a column of Vectors into a column of double arrays.

构造器概要

构造器

构造器	说明
Functions()

方法概要

修饰符和类型	方法	说明
static org.apache.flink.table.api.ApiExpression	arrayToVector(Object... arguments)	Converts a column of arrays of numeric type into a column of DenseVector instances.
static org.apache.flink.table.api.ApiExpression	vectorToArray(Object... arguments)	Converts a column of Vectors into a column of double arrays.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Functions

public Functions()

方法详细资料

vectorToArray

public static org.apache.flink.table.api.ApiExpression vectorToArray(Object... arguments)

Converts a column of Vectors into a column of double arrays.

arrayToVector

public static org.apache.flink.table.api.ApiExpression arrayToVector(Object... arguments)

Converts a column of arrays of numeric type into a column of DenseVector instances.