Package | Description |
---|---|
weka.filters | |
weka.filters.unsupervised.attribute | |
weka.filters.unsupervised.instance |
Modifier and Type | Class and Description |
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class |
MultiFilter
Applies several filters successively.
|
class |
SimpleStreamFilter
This filter is a superclass for simple stream filters.
|
Modifier and Type | Class and Description |
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class |
Add
An instance filter that adds a new attribute to the dataset.
|
class |
AddExpression
An instance filter that creates a new attribute by applying a mathematical expression to existing attributes.
|
class |
AddValues
Adds the labels from the given list to an attribute if they are missing.
|
class |
ChangeDateFormat
Changes the date format used by a date attribute.
|
class |
ClassAssigner
Filter that can set and unset the class index.
|
class |
Copy
An instance filter that copies a range of attributes in the dataset.
|
class |
FirstOrder
This instance filter takes a range of N numeric attributes and replaces them with N-1 numeric attributes, the values of which are the difference between consecutive attribute values from the original instance.
|
class |
MakeIndicator
A filter that creates a new dataset with a boolean attribute replacing a nominal attribute.
|
class |
MergeTwoValues
Merges two values of a nominal attribute into one value.
|
class |
NominalToBinary
Converts all nominal attributes into binary numeric attributes.
|
class |
NumericCleaner
A filter that 'cleanses' the numeric data from values that are too small, too big or very close to a certain value (e.g., 0) and sets these values to a pre-defined default.
|
class |
NumericToBinary
Converts all numeric attributes into binary attributes (apart from the class attribute, if set): if the value of the numeric attribute is exactly zero, the value of the new attribute will be zero.
|
class |
NumericTransform
Transforms numeric attributes using a given transformation method.
|
class |
Obfuscate
A simple instance filter that renames the relation, all attribute names and all nominal (and string) attribute values.
|
class |
RandomSubset
Chooses a random subset of attributes, either an absolute number or a percentage.
|
class |
Remove
A filter that removes a range of attributes from the dataset.
|
class |
RemoveType
Removes attributes of a given type.
|
class |
Reorder
A filter that generates output with a new order of the attributes.
|
class |
SwapValues
Swaps two values of a nominal attribute.
|
Modifier and Type | Class and Description |
---|---|
class |
NonSparseToSparse
An instance filter that converts all incoming instances into sparse format.
|
class |
RemoveWithValues
Filters instances according to the value of an attribute.
|
class |
ReservoirSample
Produces a random subsample of a dataset using the reservoir sampling Algorithm "R" by Vitter.
|
class |
SparseToNonSparse
An instance filter that converts all incoming sparse instances into non-sparse format.
|
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