public final class ChiSqSelector extends Estimator<ChiSqSelectorModel> implements DefaultParamsWritable
Constructor and Description |
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ChiSqSelector() |
ChiSqSelector(String uid) |
Modifier and Type | Method and Description |
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static Params |
clear(Param<?> param) |
ChiSqSelector |
copy(ParamMap extra)
Creates a copy of this instance with the same UID and some extra params.
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static String |
explainParam(Param<?> param) |
static String |
explainParams() |
static ParamMap |
extractParamMap() |
static ParamMap |
extractParamMap(ParamMap extra) |
static Param<String> |
featuresCol() |
ChiSqSelectorModel |
fit(Dataset<?> dataset)
Fits a model to the input data.
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static <T> scala.Option<T> |
get(Param<T> param) |
static <T> scala.Option<T> |
getDefault(Param<T> param) |
static String |
getFeaturesCol() |
static String |
getLabelCol() |
static int |
getNumTopFeatures() |
int |
getNumTopFeatures() |
static <T> T |
getOrDefault(Param<T> param) |
static String |
getOutputCol() |
static Param<Object> |
getParam(String paramName) |
static <T> boolean |
hasDefault(Param<T> param) |
static boolean |
hasParam(String paramName) |
static boolean |
isDefined(Param<?> param) |
static boolean |
isSet(Param<?> param) |
static Param<String> |
labelCol() |
static ChiSqSelector |
load(String path) |
static IntParam |
numTopFeatures() |
IntParam |
numTopFeatures()
Number of features that selector will select (ordered by statistic value descending).
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static Param<String> |
outputCol() |
static Param<?>[] |
params() |
static void |
save(String path) |
static <T> Params |
set(Param<T> param,
T value) |
ChiSqSelector |
setFeaturesCol(String value) |
ChiSqSelector |
setLabelCol(String value) |
ChiSqSelector |
setNumTopFeatures(int value) |
ChiSqSelector |
setOutputCol(String value) |
static String |
toString() |
StructType |
transformSchema(StructType schema)
:: DeveloperApi ::
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String |
uid()
An immutable unique ID for the object and its derivatives.
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static void |
validateParams() |
static MLWriter |
write() |
equals, 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
write
save
public ChiSqSelector(String uid)
public ChiSqSelector()
public static ChiSqSelector load(String path)
public static String toString()
public static Param<?>[] params()
public static void validateParams()
public static String explainParam(Param<?> param)
public static String explainParams()
public static final boolean isSet(Param<?> param)
public static final boolean isDefined(Param<?> param)
public static boolean hasParam(String paramName)
public static Param<Object> getParam(String paramName)
public static final <T> scala.Option<T> get(Param<T> param)
public static final <T> T getOrDefault(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()
public static final Param<String> featuresCol()
public static final String getFeaturesCol()
public static final Param<String> outputCol()
public static final String getOutputCol()
public static final Param<String> labelCol()
public static final String getLabelCol()
public static final IntParam numTopFeatures()
public static int getNumTopFeatures()
public static void save(String path) throws java.io.IOException
java.io.IOException
public static MLWriter write()
public String uid()
Identifiable
uid
in interface Identifiable
public ChiSqSelector setNumTopFeatures(int value)
public ChiSqSelector setFeaturesCol(String value)
public ChiSqSelector setOutputCol(String value)
public ChiSqSelector setLabelCol(String value)
public ChiSqSelectorModel fit(Dataset<?> dataset)
Estimator
fit
in class Estimator<ChiSqSelectorModel>
dataset
- (undocumented)public StructType transformSchema(StructType schema)
PipelineStage
Check transform validity and derive the output schema from the input schema.
Typical implementation should first conduct verification on schema change and parameter validity, including complex parameter interaction checks.
transformSchema
in class PipelineStage
schema
- (undocumented)public ChiSqSelector copy(ParamMap extra)
Params
defaultCopy()
.copy
in interface Params
copy
in class Estimator<ChiSqSelectorModel>
extra
- (undocumented)public IntParam numTopFeatures()
public int getNumTopFeatures()