Projection (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

Type Parameters:

IN - Input data type

OUT - Output data type

All Known Implementing Classes:

FeatureSelection, LatLngToECEFProjection, LngLatToECEFProjection, NumericalFeatureSelection, RandomProjection
```
public interface Projection<IN,OUT>
```
Projection interface.

Since:

0.5.0

Author:

Erich Schubert

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TypeInformation`	`getInputDataTypeInformation()`	Input type information.
`SimpleTypeInformation<OUT>`	`getOutputDataTypeInformation()`	Output type restriction
`void`	`initialize(SimpleTypeInformation<? extends IN> in)`	Initialize
`OUT`	`project(IN data)`	Project a single instance.

- Method Detail
  - initialize
```
void initialize(SimpleTypeInformation<? extends IN> in)
```
    Initialize
    
    Parameters:
    
    in - Data type to use for projecting.
  - project
```
OUT project(IN data)
```
    Project a single instance.
    
    Parameters:
    
    data - Data to project
    
    Returns:
    
    Projected data
  - getInputDataTypeInformation
```
TypeInformation getInputDataTypeInformation()
```
    Input type information.
    
    Returns:
    
    Type restriction
  - getOutputDataTypeInformation
```
SimpleTypeInformation<OUT> getOutputDataTypeInformation()
```
    Output type restriction
    
    Returns:
    
    Output type