public class PolynomialExpansion extends UnaryTransformer<Vector,Vector,PolynomialExpansion>
http://en.wikipedia.org/wiki/Polynomial_expansion
, "In mathematics, an
expansion of a product of sums expresses it as a sum of products by using the fact that
multiplication distributes over addition". Take a 2-variable feature vector as an example:
(x, y)
, if we want to expand it with degree 2, then we get (x, x * x, y, x * y, y * y)
.Constructor and Description |
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PolynomialExpansion() |
PolynomialExpansion(java.lang.String uid) |
Modifier and Type | Method and Description |
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protected static <T> T |
$(Param<T> param) |
static Params |
clear(Param<?> param) |
PolynomialExpansion |
copy(ParamMap extra)
Creates a copy of this instance with the same UID and some extra params.
|
protected static <T extends Params> |
copyValues(T to,
ParamMap extra) |
protected static <T extends Params> |
copyValues$default$2() |
protected scala.Function1<Vector,Vector> |
createTransformFunc()
Creates the transform function using the given param map.
|
protected static <T extends Params> |
defaultCopy(ParamMap extra) |
IntParam |
degree()
The polynomial degree to expand, which should be >= 1.
|
static java.lang.String |
explainParam(Param<?> param) |
static java.lang.String |
explainParams() |
static ParamMap |
extractParamMap() |
static ParamMap |
extractParamMap(ParamMap extra) |
static <T> scala.Option<T> |
get(Param<T> param) |
static <T> scala.Option<T> |
getDefault(Param<T> param) |
int |
getDegree() |
static java.lang.String |
getInputCol() |
static <T> T |
getOrDefault(Param<T> param) |
static java.lang.String |
getOutputCol() |
static Param<java.lang.Object> |
getParam(java.lang.String paramName) |
static <T> boolean |
hasDefault(Param<T> param) |
static boolean |
hasParam(java.lang.String paramName) |
protected static void |
initializeLogIfNecessary(boolean isInterpreter) |
static Param<java.lang.String> |
inputCol() |
static boolean |
isDefined(Param<?> param) |
static boolean |
isSet(Param<?> param) |
protected static boolean |
isTraceEnabled() |
static PolynomialExpansion |
load(java.lang.String path) |
protected static org.slf4j.Logger |
log() |
protected static void |
logDebug(scala.Function0<java.lang.String> msg) |
protected static void |
logDebug(scala.Function0<java.lang.String> msg,
java.lang.Throwable throwable) |
protected static void |
logError(scala.Function0<java.lang.String> msg) |
protected static void |
logError(scala.Function0<java.lang.String> msg,
java.lang.Throwable throwable) |
protected static void |
logInfo(scala.Function0<java.lang.String> msg) |
protected static void |
logInfo(scala.Function0<java.lang.String> msg,
java.lang.Throwable throwable) |
protected static java.lang.String |
logName() |
protected static void |
logTrace(scala.Function0<java.lang.String> msg) |
protected static void |
logTrace(scala.Function0<java.lang.String> msg,
java.lang.Throwable throwable) |
protected static void |
logWarning(scala.Function0<java.lang.String> msg) |
protected static void |
logWarning(scala.Function0<java.lang.String> msg,
java.lang.Throwable throwable) |
static Param<java.lang.String> |
outputCol() |
protected DataType |
outputDataType()
Returns the data type of the output column.
|
static Param<?>[] |
params() |
static void |
save(java.lang.String path) |
static <T> Params |
set(Param<T> param,
T value) |
protected static Params |
set(ParamPair<?> paramPair) |
protected static Params |
set(java.lang.String param,
java.lang.Object value) |
protected static <T> Params |
setDefault(Param<T> param,
T value) |
protected static Params |
setDefault(scala.collection.Seq<ParamPair<?>> paramPairs) |
PolynomialExpansion |
setDegree(int value) |
static T |
setInputCol(java.lang.String value) |
static T |
setOutputCol(java.lang.String value) |
static java.lang.String |
toString() |
static Dataset<Row> |
transform(Dataset<?> dataset) |
static Dataset<Row> |
transform(Dataset<?> dataset,
ParamMap paramMap) |
static Dataset<Row> |
transform(Dataset<?> dataset,
ParamPair<?> firstParamPair,
ParamPair<?>... otherParamPairs) |
static Dataset<Row> |
transform(Dataset<?> dataset,
ParamPair<?> firstParamPair,
scala.collection.Seq<ParamPair<?>> otherParamPairs) |
static StructType |
transformSchema(StructType schema) |
protected static StructType |
transformSchema(StructType schema,
boolean logging) |
java.lang.String |
uid()
An immutable unique ID for the object and its derivatives.
|
protected static void |
validateInputType(DataType inputType) |
static void |
validateParams() |
static MLWriter |
write() |
setInputCol, setOutputCol, transform, transformSchema, validateInputType
transform, transform, transform
transformSchema
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
clear, copyValues, defaultCopy, defaultParamMap, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn, validateParams
toString
public PolynomialExpansion(java.lang.String uid)
public PolynomialExpansion()
public static PolynomialExpansion load(java.lang.String path)
public static java.lang.String toString()
public static Param<?>[] params()
public static void validateParams()
public static java.lang.String explainParam(Param<?> param)
public static java.lang.String explainParams()
public static final boolean isSet(Param<?> param)
public static final boolean isDefined(Param<?> param)
public static boolean hasParam(java.lang.String paramName)
public static Param<java.lang.Object> getParam(java.lang.String paramName)
protected static final Params set(java.lang.String param, java.lang.Object value)
public static final <T> scala.Option<T> get(Param<T> param)
public static final <T> T getOrDefault(Param<T> param)
protected static final <T> T $(Param<T> param)
public static final <T> scala.Option<T> getDefault(Param<T> param)
public static final <T> boolean hasDefault(Param<T> param)
public static final ParamMap extractParamMap()
protected static java.lang.String logName()
protected static org.slf4j.Logger log()
protected static void logInfo(scala.Function0<java.lang.String> msg)
protected static void logDebug(scala.Function0<java.lang.String> msg)
protected static void logTrace(scala.Function0<java.lang.String> msg)
protected static void logWarning(scala.Function0<java.lang.String> msg)
protected static void logError(scala.Function0<java.lang.String> msg)
protected static void logInfo(scala.Function0<java.lang.String> msg, java.lang.Throwable throwable)
protected static void logDebug(scala.Function0<java.lang.String> msg, java.lang.Throwable throwable)
protected static void logTrace(scala.Function0<java.lang.String> msg, java.lang.Throwable throwable)
protected static void logWarning(scala.Function0<java.lang.String> msg, java.lang.Throwable throwable)
protected static void logError(scala.Function0<java.lang.String> msg, java.lang.Throwable throwable)
protected static boolean isTraceEnabled()
protected static void initializeLogIfNecessary(boolean isInterpreter)
protected static StructType transformSchema(StructType schema, boolean logging)
public static Dataset<Row> transform(Dataset<?> dataset, ParamPair<?> firstParamPair, scala.collection.Seq<ParamPair<?>> otherParamPairs)
public static Dataset<Row> transform(Dataset<?> dataset, ParamPair<?> firstParamPair, ParamPair<?>... otherParamPairs)
public static final Param<java.lang.String> inputCol()
public static final java.lang.String getInputCol()
public static final Param<java.lang.String> outputCol()
public static final java.lang.String getOutputCol()
public static T setInputCol(java.lang.String value)
public static T setOutputCol(java.lang.String value)
protected static void validateInputType(DataType inputType)
public static StructType transformSchema(StructType schema)
public static void save(java.lang.String path) throws java.io.IOException
java.io.IOException
public static MLWriter write()
public java.lang.String uid()
Identifiable
public IntParam degree()
public int getDegree()
public PolynomialExpansion setDegree(int value)
protected scala.Function1<Vector,Vector> createTransformFunc()
UnaryTransformer
createTransformFunc
in class UnaryTransformer<Vector,Vector,PolynomialExpansion>
protected DataType outputDataType()
UnaryTransformer
outputDataType
in class UnaryTransformer<Vector,Vector,PolynomialExpansion>
public PolynomialExpansion copy(ParamMap extra)
Params
copy
in interface Params
copy
in class UnaryTransformer<Vector,Vector,PolynomialExpansion>
extra
- (undocumented)defaultCopy()