uno.informatics.data.utils

Class DatasetUtils

java.lang.Object

uno.informatics.data.utils.DatasetUtils

public class DatasetUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
DatasetUtils()

Method Summary

Modifier and Type	Method and Description
static uno.informatics.data.Feature	copyFeature(uno.informatics.data.Feature feature) Copies a feature and its properties, validating at the same time.
static ColumnFeature	createDefaultColumnFeature(String id, String name, int possibleDataTypes) Creates a default column feature from a name and a bit mask of possible data types
static uno.informatics.data.Feature	createDefaultFeature(String id, String name, uno.informatics.data.DataType dataType, uno.informatics.data.ScaleType scaleType) Creates a default feature from a name and a bit mask of possible data types
static uno.informatics.data.Feature	createFeature(ColumnFeature columnFeature) Converts a column feature to simple feature
static List<uno.informatics.data.Feature>	createFeatures(List<ColumnFeature> columnFeatures) Converts column features to simple features
static int	getConversionType(uno.informatics.data.Feature scale)
static int	getConversionType(uno.informatics.data.Scale scale)
static int	getConversionTypes(uno.informatics.data.DataType... dataTypes)
static int[]	getConversionTypes(uno.informatics.data.Feature rowHeaderFeature, List<? extends uno.informatics.data.Feature> features)
static int[]	getConversionTypes(List<? extends uno.informatics.data.Feature> features)
static List<uno.informatics.data.DataType>	getDataTypes(int conversionTypes)
static List<uno.informatics.data.ScaleType>	getScaleTypes(uno.informatics.data.DataType dataType)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DatasetUtils

public DatasetUtils()

Method Detail

createDefaultColumnFeature

public static ColumnFeature createDefaultColumnFeature(String id,
                                                       String name,
                                                       int possibleDataTypes)

Creates a default column feature from a name and a bit mask of possible data types

Parameters:

id - the id of the column feature

name - the name of the column feature

possibleDataTypes - a bit mask of possible data types

Returns:

the default column feature

createDefaultFeature

public static uno.informatics.data.Feature createDefaultFeature(String id,
                                                                String name,
                                                                uno.informatics.data.DataType dataType,
                                                                uno.informatics.data.ScaleType scaleType)

Creates a default feature from a name and a bit mask of possible data types

Parameters:

name - the name of the feature

dataType - the data type of the feature

scaleType - the scale type of the feature

Returns:

the default feature

createFeatures

public static List<uno.informatics.data.Feature> createFeatures(List<ColumnFeature> columnFeatures)

Converts column features to simple features

Parameters:

columnFeatures - list of column features

Returns:

list of features

createFeature

public static uno.informatics.data.Feature createFeature(ColumnFeature columnFeature)

Converts a column feature to simple feature

Parameters:

columnFeature - a column feature to be converted

Returns:

converted simple feature

getConversionType

public static final int getConversionType(uno.informatics.data.Feature scale)

getConversionType

public static final int getConversionType(uno.informatics.data.Scale scale)

getConversionTypes

public static final int getConversionTypes(uno.informatics.data.DataType... dataTypes)

getConversionTypes

public static final int[] getConversionTypes(List<? extends uno.informatics.data.Feature> features)

getConversionTypes

public static final int[] getConversionTypes(uno.informatics.data.Feature rowHeaderFeature,
                                             List<? extends uno.informatics.data.Feature> features)

getDataTypes

public static final List<uno.informatics.data.DataType> getDataTypes(int conversionTypes)

getScaleTypes

public static final List<uno.informatics.data.ScaleType> getScaleTypes(uno.informatics.data.DataType dataType)

copyFeature

public static final uno.informatics.data.Feature copyFeature(uno.informatics.data.Feature feature)
                                                      throws uno.informatics.data.dataset.DatasetException

Copies a feature and its properties, validating at the same time. For example scale type and data type are checked for consistency.

Parameters:

feature - feature to copy

Returns:

copy

Throws:

uno.informatics.data.dataset.DatasetException - if the feature is invalid