org.knime.base.node.mine.regression.logistic.learner
Class LogRegLearner

java.lang.Object
  org.knime.base.node.mine.regression.logistic.learner.LogRegLearner

public final class LogRegLearner
extends Object

Logistic Regression Learner implementation.

Author:

Heiko Hofer

Constructor Summary

LogRegLearner(PortObjectSpec[] specs, LogRegLearnerSettings settings)

Method Summary

LogisticRegressionContent	execute(PortObject[] portObjects, ExecutionContext exec) Compute logistic regression model.
PortObjectSpec[]	getOutputSpec()
static void	validateSettings(NodeSettingsRO settings) Validates the settings in the passed NodeSettings object.

Methods inherited from class java.lang.Object

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

Constructor Detail

LogRegLearner

public LogRegLearner(PortObjectSpec[] specs,
                     LogRegLearnerSettings settings)
              throws InvalidSettingsException

Parameters:

specs - The input specs.

settings - The settings object.

Throws:

InvalidSettingsException - when settings are not consistent

See Also:

LogRegLearnerNodeModel.configure(PortObjectSpec[])

Method Detail

execute

public LogisticRegressionContent execute(PortObject[] portObjects,
                                         ExecutionContext exec)
                                  throws Exception

Compute logistic regression model.

Parameters:

portObjects - The input objects.

exec - the execution context

Returns:

a LogisticRegressionContent storing computed data

Throws:

Exception - if computation of the logistic regression model is not successful or if given data is inconsistent with the settings defined in the constructor.

See Also:

LogRegLearnerNodeModel#execute(PortObjectSpec[])

getOutputSpec

public PortObjectSpec[] getOutputSpec()
                               throws InvalidSettingsException

Returns:

The spec of the output.

Throws:

InvalidSettingsException - If settings and spec given in the constructor are invalid.

validateSettings

public static void validateSettings(NodeSettingsRO settings)
                             throws InvalidSettingsException

Validates the settings in the passed NodeSettings object. The specified settings is checked for completeness and consistency.

Parameters:

settings - The settings to validate.

Throws:

InvalidSettingsException - If the validation of the settings failed.