StandardizeNormalizer

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Summary:
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Detail:
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java.lang.Object
- org.datavec.api.transform.transform.BaseTransform
- - org.datavec.api.transform.transform.BaseColumnTransform
  - - org.datavec.api.transform.transform.doubletransform.BaseDoubleTransform
    - - org.datavec.api.transform.transform.doubletransform.StandardizeNormalizer

All Implemented Interfaces:

java.io.Serializable, ColumnOp, Transform
```
public class StandardizeNormalizer
extends BaseDoubleTransform
```
Normalize using (x-mean)/stdev. Also known as a standard score, standardization etc.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

protected double mean

protected double stdev
- Fields inherited from class org.datavec.api.transform.transform.BaseColumnTransform
  columnName, columnNumber
- Fields inherited from class org.datavec.api.transform.transform.BaseTransform
  inputSchema

Constructor Summary

Constructors
Constructor and Description

StandardizeNormalizer(java.lang.String columnName, double mean, double stdev)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.Object`	`map(java.lang.Object input)` Transform an object in to another object
`Writable`	`map(Writable writable)`
`java.lang.String`	`toString()`

Methods inherited from class org.datavec.api.transform.transform.doubletransform.BaseDoubleTransform
getNewColumnMetaData

Methods inherited from class org.datavec.api.transform.transform.BaseColumnTransform
columnName, columnNames, equals, hashCode, map, mapSequence, outputColumnName, outputColumnNames, setInputSchema, transform

Methods inherited from class org.datavec.api.transform.transform.BaseTransform
getInputSchema, mapSequence

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

Methods inherited from interface org.datavec.api.transform.ColumnOp
getInputSchema

Field Detail

mean
```
protected final double mean
```

stdev
```
protected final double stdev
```

Constructor Detail

StandardizeNormalizer

public StandardizeNormalizer(java.lang.String columnName,
                             double mean,
                             double stdev)

Method Detail
- map
```
public Writable map(Writable writable)
```
  Specified by:
  
  map in class BaseDoubleTransform
- toString
```
public java.lang.String toString()
```
  Specified by:
  
  toString in class BaseColumnTransform
- map
```
public java.lang.Object map(java.lang.Object input)
```
  Transform an object in to another object
  
  Parameters:
  
  input - the record to transform
  
  Returns:
  
  the transformed writable

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