StringListToCategoricalSetTransform

java.lang.Object
- org.datavec.api.transform.transform.BaseTransform
- - org.datavec.api.transform.transform.string.StringListToCategoricalSetTransform

All Implemented Interfaces:

java.io.Serializable, ColumnOp, Transform
```
public class StringListToCategoricalSetTransform
extends BaseTransform
```
Convert a delimited String to a list of binary categorical columns. Suppose the possible String values were {"a","b","c","d"} and the String column value to be converted contained the String "a,c", then the 4 output columns would have values ["true","false","true","false"]

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.datavec.api.transform.transform.BaseTransform
  inputSchema

Constructor Summary

Constructors
Constructor and Description
`StringListToCategoricalSetTransform(java.lang.String columnName, java.util.List<java.lang.String> newColumnNames, java.util.List<java.lang.String> categoryTokens, java.lang.String delimiter)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.String`	`columnName()` Returns a singular column name this op is meant to run on
`java.lang.String[]`	`columnNames()` Returns column names this op is meant to run on
`java.util.List<Writable>`	`map(java.util.List<Writable> writables)` Transform a writable in to another writable
`java.lang.Object`	`map(java.lang.Object input)` Transform an object in to another object
`java.lang.Object`	`mapSequence(java.lang.Object sequence)` Transform a sequence
`java.lang.String`	`outputColumnName()` The output column name after the operation has been applied
`java.lang.String[]`	`outputColumnNames()` The output column names This will often be the same as the input
`void`	`setInputSchema(Schema inputSchema)` Set the input schema.
`java.lang.String`	`toString()`
`Schema`	`transform(Schema inputSchema)` Get the output schema for this transformation, given an input schema

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

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

- Constructor Detail
  - StringListToCategoricalSetTransform
```
public StringListToCategoricalSetTransform(java.lang.String columnName,
                                           java.util.List<java.lang.String> newColumnNames,
                                           java.util.List<java.lang.String> categoryTokens,
                                           java.lang.String delimiter)
```
    Parameters:
    
    columnName - The name of the column to convert
    
    newColumnNames - The names of the new columns to create
    
    categoryTokens - The possible tokens that may be present. Note this list must have the same length and order as the newColumnNames list
    
    delimiter - The delimiter for the Strings to convert
- Method Detail
  - transform
```
public Schema transform(Schema inputSchema)
```
    Description copied from interface: ColumnOp
    
    Get the output schema for this transformation, given an input schema
  - setInputSchema
```
public void setInputSchema(Schema inputSchema)
```
    Description copied from interface: ColumnOp
    
    Set the input schema.
    
    Specified by:
    
    setInputSchema in interface ColumnOp
    
    Overrides:
    
    setInputSchema in class BaseTransform
  - toString
```
public java.lang.String toString()
```
    Specified by:
    
    toString in class BaseTransform
  - map
```
public java.util.List<Writable> map(java.util.List<Writable> writables)
```
    Description copied from interface: Transform
    
    Transform a writable in to another writable
    
    Parameters:
    
    writables - the record to transform
    
    Returns:
    
    the transformed writable
  - 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
  - mapSequence
```
public java.lang.Object mapSequence(java.lang.Object sequence)
```
    Transform a sequence
    
    Parameters:
    
    sequence -
  - outputColumnName
```
public java.lang.String outputColumnName()
```
    The output column name after the operation has been applied
    
    Returns:
    
    the output column name
  - outputColumnNames
```
public java.lang.String[] outputColumnNames()
```
    The output column names This will often be the same as the input
    
    Returns:
    
    the output column names
  - columnNames
```
public java.lang.String[] columnNames()
```
    Returns column names this op is meant to run on
    
    Returns:
  - columnName
```
public java.lang.String columnName()
```
    Returns a singular column name this op is meant to run on
    
    Returns:

Class StringListToCategoricalSetTransform

Field Summary

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

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Constructor Detail

StringListToCategoricalSetTransform

Method Detail

transform

setInputSchema

toString

map

map

mapSequence

outputColumnName

outputColumnNames

columnNames

columnName