程序包 org.apache.flink.ml.feature.vectorassembler

类 VectorAssembler

java.lang.Object

org.apache.flink.ml.feature.vectorassembler.VectorAssembler

所有已实现的接口:

Serializable, org.apache.flink.ml.api.AlgoOperator<VectorAssembler>, org.apache.flink.ml.api.Stage<VectorAssembler>, org.apache.flink.ml.api.Transformer<VectorAssembler>, org.apache.flink.ml.common.param.HasHandleInvalid<VectorAssembler>, org.apache.flink.ml.common.param.HasInputCols<VectorAssembler>, org.apache.flink.ml.common.param.HasOutputCol<VectorAssembler>, VectorAssemblerParams<VectorAssembler>, org.apache.flink.ml.param.WithParams<VectorAssembler>

public class VectorAssembler
extends Object
implements org.apache.flink.ml.api.Transformer<VectorAssembler>, VectorAssemblerParams<VectorAssembler>

A Transformer which combines a given list of input columns into a vector column. Input columns would be numerical or vectors whose sizes are specified by the VectorAssemblerParams.INPUT_SIZES parameter. Invalid input data with null values or values with wrong sizes would be dealt with according to the strategy specified by the HasHandleInvalid parameter as follows:

• keep: If the input column data is null, a vector would be created with the specified size and NaN values. The vector would be used in the assembling process to represent the input column data. If the input column data is a vector, the data would be used in the assembling process even if it has a wrong size.
• skip: If the input column data is null or a vector with wrong size, the input row would be filtered out and not be sent to downstream operators.
• error: If the input column data is null or a vector with wrong size, an exception would be thrown.

另请参阅:

序列化表格

字段概要

从接口继承的字段 org.apache.flink.ml.common.param.HasHandleInvalid

ERROR_INVALID, HANDLE_INVALID, KEEP_INVALID, SKIP_INVALID

从接口继承的字段 org.apache.flink.ml.common.param.HasInputCols

INPUT_COLS

从接口继承的字段 org.apache.flink.ml.common.param.HasOutputCol

OUTPUT_COL

从接口继承的字段 org.apache.flink.ml.feature.vectorassembler.VectorAssemblerParams

INPUT_SIZES

构造器概要

构造器

构造器	说明
VectorAssembler()

方法概要

修饰符和类型	方法	说明
Map<org.apache.flink.ml.param.Param<?>,Object>	getParamMap()
static VectorAssembler	load(org.apache.flink.table.api.bridge.java.StreamTableEnvironment env, String path)
void	save(String path)
org.apache.flink.table.api.Table[]	transform(org.apache.flink.table.api.Table... inputs)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.ml.common.param.HasHandleInvalid

getHandleInvalid, setHandleInvalid

从接口继承的方法 org.apache.flink.ml.common.param.HasInputCols

getInputCols, setInputCols

从接口继承的方法 org.apache.flink.ml.common.param.HasOutputCol

getOutputCol, setOutputCol

从接口继承的方法 org.apache.flink.ml.feature.vectorassembler.VectorAssemblerParams

getInputSizes, setInputSizes

从接口继承的方法 org.apache.flink.ml.param.WithParams

get, getParam, set

构造器详细资料

VectorAssembler

public VectorAssembler()

方法详细资料

transform

public org.apache.flink.table.api.Table[] transform(org.apache.flink.table.api.Table... inputs)

指定者:

transform 在接口中 org.apache.flink.ml.api.AlgoOperator<VectorAssembler>

save

public void save(String path)
          throws IOException

指定者:

save 在接口中 org.apache.flink.ml.api.Stage<VectorAssembler>

抛出:

IOException

load

public static VectorAssembler load(org.apache.flink.table.api.bridge.java.StreamTableEnvironment env,
                                   String path)
                            throws IOException

抛出:

IOException

getParamMap

public Map<org.apache.flink.ml.param.Param<?>,Object> getParamMap()

指定者:

getParamMap 在接口中 org.apache.flink.ml.param.WithParams<VectorAssembler>