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

java.lang.Object
- elki.datasource.filter.AbstractStreamFilter
- - elki.datasource.filter.cleaning.DropNaNFilter

All Implemented Interfaces:

BundleStreamSource, ObjectFilter, StreamFilter
```
public class DropNaNFilter
extends AbstractStreamFilter
```
A filter to drop all records that contain NaN values. Note: currently, only dense vector columns are supported. TODO: add support for sparse vectors.

Since:

0.6.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class DropNaNFilter.Par
Parameterization class.
- Nested classes/interfaces inherited from interface elki.datasource.bundle.BundleStreamSource
  BundleStreamSource.Event

Field Summary

Fields
Modifier and Type Field Description

private long[] densecols
Columns to check.

private static Logging LOG
Class logger
- Fields inherited from class elki.datasource.filter.AbstractStreamFilter
  source

Constructor Summary

Constructors
Constructor Description

DropNaNFilter()
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`data(int rnum)`	Access a particular object and representation.
`MultipleObjectsBundle`	`filter(MultipleObjectsBundle objects)`	Filter a set of object packages.
`BundleMeta`	`getMeta()`	Get the current meta data.
`BundleStreamSource.Event`	`nextEvent()`	Get the next event
`private void`	`updateMeta(BundleMeta meta)`	Process an updated meta record.

Methods inherited from class elki.datasource.filter.AbstractStreamFilter
asMultipleObjectsBundle, assignDBID, hasDBIDs, init, toString

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

- Field Detail
  - LOG
```
private static final Logging LOG
```
    Class logger
  - densecols
```
private long[] densecols
```
    Columns to check.
- Constructor Detail
  - DropNaNFilter
```
public DropNaNFilter()
```
    Constructor.
- Method Detail
  - getMeta
```
public BundleMeta getMeta()
```
    Description copied from interface: BundleStreamSource
    
    Get the current meta data.
    
    Returns:
    
    Metadata
  - data
```
public java.lang.Object data(int rnum)
```
    Description copied from interface: BundleStreamSource
    
    Access a particular object and representation.
    
    Parameters:
    
    rnum - Representation number
    
    Returns:
    
    Contained data
  - nextEvent
```
public BundleStreamSource.Event nextEvent()
```
    Description copied from interface: BundleStreamSource
    
    Get the next event
    
    Returns:
    
    Event type
  - updateMeta
```
private void updateMeta(BundleMeta meta)
```
    Process an updated meta record.
    
    Parameters:
    
    meta - Meta record
  - filter
```
public MultipleObjectsBundle filter(MultipleObjectsBundle objects)
```
    Description copied from interface: ObjectFilter
    
    Filter a set of object packages.
    
    Specified by:
    
    filter in interface ObjectFilter
    
    Overrides:
    
    filter in class AbstractStreamFilter
    
    Parameters:
    
    objects - Object to filter
    
    Returns:
    
    Filtered objects