public final class IDF extends Estimator<IDFModel> implements IDFBase, DefaultParamsWritable
Modifier and Type | Method and Description |
---|---|
IDF |
copy(ParamMap extra)
Creates a copy of this instance with the same UID and some extra params.
|
IDFModel |
fit(Dataset<?> dataset)
Fits a model to the input data.
|
static IDF |
load(String path) |
static MLReader<T> |
read() |
IDF |
setInputCol(String value) |
IDF |
setMinDocFreq(int value) |
IDF |
setOutputCol(String value) |
StructType |
transformSchema(StructType schema)
:: DeveloperApi ::
|
String |
uid()
An immutable unique ID for the object and its derivatives.
|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getMinDocFreq, minDocFreq, validateAndTransformSchema
getInputCol, inputCol
getOutputCol, outputCol
clear, copyValues, defaultCopy, defaultParamMap, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn
toString
write
save
initializeLogging, initializeLogIfNecessary, initializeLogIfNecessary, isTraceEnabled, log_, log, logDebug, logDebug, logError, logError, logInfo, logInfo, logName, logTrace, logTrace, logWarning, logWarning
public static IDF load(String path)
public static MLReader<T> read()
public String uid()
Identifiable
uid
in interface Identifiable
public IDF setInputCol(String value)
public IDF setOutputCol(String value)
public IDF setMinDocFreq(int value)
public IDFModel fit(Dataset<?> dataset)
Estimator
public StructType transformSchema(StructType schema)
PipelineStage
Check transform validity and derive the output schema from the input schema.
We check validity for interactions between parameters during transformSchema
and
raise an exception if any parameter value is invalid. Parameter value checks which
do not depend on other parameters are handled by Param.validate()
.
Typical implementation should first conduct verification on schema change and parameter validity, including complex parameter interaction checks.
transformSchema
in class PipelineStage
schema
- (undocumented)