FloatColumnsMathOpTransform (deeplearning4j 1.0.0-beta7 API)

java.lang.Object
- org.datavec.api.transform.transform.BaseColumnsMathOpTransform
- - org.datavec.api.transform.transform.floattransform.FloatColumnsMathOpTransform

All Implemented Interfaces:

Serializable, ColumnOp, Operation<Schema,Schema>, Transform
```
public class FloatColumnsMathOpTransform
extends BaseColumnsMathOpTransform
```
Add a new float column, calculated from one or more other columns. A new column (with the specified name) is added as the final column of the output. No other columns are modified.
For example, if newColumnName=="newCol", mathOp==Add, and columns=={"col1","col2"}, then the output column with name "newCol" has value col1+col2.

Author:

Fariz Rahman

See Also:

To do an in-place mathematical operation of a double column and a double scalar value, Serialized Form

Field Summary
- Fields inherited from class org.datavec.api.transform.transform.BaseColumnsMathOpTransform
  columns, mathOp, newColumnName

Constructor Summary

Constructors
Constructor and Description
`FloatColumnsMathOpTransform(String newColumnName, MathOp mathOp, List<String> columns)`
`FloatColumnsMathOpTransform(String newColumnName, MathOp mathOp, String... columns)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected ColumnMetaData`	`derivedColumnMetaData(String newColumnName, Schema inputSchema)`
`protected Writable`	`doOp(Writable... input)`
`Object`	`map(Object input)` Transform an object in to another object
`Object`	`mapSequence(Object sequence)` Transform a sequence
`String`	`toString()`

Methods inherited from class org.datavec.api.transform.transform.BaseColumnsMathOpTransform
columnName, columnNames, getInputSchema, map, mapSequence, outputColumnName, outputColumnNames, setInputSchema, transform

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FloatColumnsMathOpTransform

public FloatColumnsMathOpTransform(String newColumnName,
                                   MathOp mathOp,
                                   List<String> columns)

FloatColumnsMathOpTransform

public FloatColumnsMathOpTransform(String newColumnName,
                                   MathOp mathOp,
                                   String... columns)

Method Detail
- derivedColumnMetaData
```
protected ColumnMetaData derivedColumnMetaData(String newColumnName,
                                               Schema inputSchema)
```
  Specified by:
  
  derivedColumnMetaData in class BaseColumnsMathOpTransform
- doOp
```
protected Writable doOp(Writable... input)
```
  Specified by:
  
  doOp in class BaseColumnsMathOpTransform
- toString
```
public String toString()
```
  Specified by:
  
  toString in class BaseColumnsMathOpTransform
- map
```
public Object map(Object input)
```
  Transform an object in to another object
  
  Parameters:
  
  input - the record to transform
  
  Returns:
  
  the transformed writable
- mapSequence
```
public Object mapSequence(Object sequence)
```
  Transform a sequence
  
  Parameters:
  
  sequence -

Class FloatColumnsMathOpTransform

Field Summary

Fields inherited from class org.datavec.api.transform.transform.BaseColumnsMathOpTransform

Constructor Summary

Method Summary

Methods inherited from class org.datavec.api.transform.transform.BaseColumnsMathOpTransform

Methods inherited from class java.lang.Object

Constructor Detail

FloatColumnsMathOpTransform

FloatColumnsMathOpTransform

Method Detail

derivedColumnMetaData

doOp

toString

map

mapSequence