# Package weka.experiment

- Interface Summary
  Interface | Description
  --- | ---
  Compute | Interface to something that can accept remote connections and execute a task.
  InstanceQueryAdapter | An interface implemented by InstanceQuery and any user class that is to be passed as the first argument to InstanceQuery.retrieveInstances(InstanceQueryAdapter, ResultSet).
  RemoteExperimentListener | Interface for classes that want to listen for updates on RemoteExperiment progress
  ResultListener | Interface for objects able to listen for results obtained by a ResultProducer
  ResultProducer | This interface defines the methods required for an object that produces results for different randomizations of a dataset.
  SplitEvaluator | Interface to objects able to generate a fixed set of results for a particular split of a dataset.
  Task | Interface to something that can be remotely executed as a task.
  Tester | Interface for different kinds of Testers in the Experimenter.

- Class Summary
  Class | Description
  --- | ---
  AveragingResultProducer | Takes the results from a ResultProducer and submits the average to the result listener.
  ClassifierSplitEvaluator | A SplitEvaluator that produces results for a classification scheme on a nominal class attribute.
  CostSensitiveClassifierSplitEvaluator | SplitEvaluator that produces results for a classification scheme on a nominal class attribute, including weighted misclassification costs.
  CrossValidationResultProducer | Generates for each run, carries out an n-fold cross-validation, using the set SplitEvaluator to generate some results.
  CrossValidationSplitResultProducer | Carries out one split of a repeated k-fold cross-validation, using the set SplitEvaluator to generate some results.
  CSVResultListener | Takes results from a result producer and assembles them into comma separated value form.
  DatabaseResultListener | Takes results from a result producer and sends them to a database.
  DatabaseResultProducer | Examines a database and extracts out the results produced by the specified ResultProducer and submits them to the specified ResultListener.
  DatabaseUtils | DatabaseUtils provides utility functions for accessing the experiment database.
  DensityBasedClustererSplitEvaluator | A SplitEvaluator that produces results for a density based clusterer.
  Experiment | Holds all the necessary configuration information for a standard type experiment.
  ExplicitTestsetResultProducer | Loads the external test set and calls the appropriate SplitEvaluator to generate some results. The filename of the test set is constructed as follows: <dir> + / + <prefix> + <relation-name> + <suffix> The relation-name can be modified by using the regular expression to replace the matching sub-string with a specified replacement string.
  InstanceQuery | Convert the results of a database query into instances.
  InstancesResultListener | Outputs the received results in arff format to a Writer.
  LearningRateResultProducer | Tells a sub-ResultProducer to reproduce the current run for varying sized subsamples of the dataset.
  OutputZipper | OutputZipper writes output to either gzipped files or to a multi entry zip file.
  PairedCorrectedTTester | Behaves the same as PairedTTester, only it uses the corrected resampled t-test statistic.
  PairedStats | A class for storing stats on a paired comparison (t-test and correlation)
  PairedStatsCorrected | A class for storing stats on a paired comparison.
  PairedTTester | Calculates T-Test statistics on data stored in a set of instances.
  PropertyNode | Stores information on a property of an object: the class of the object with the property; the property descriptor, and the current value.
  RandomSplitResultProducer | Generates a single train/test split and calls the appropriate SplitEvaluator to generate some results.
  RegressionSplitEvaluator | A SplitEvaluator that produces results for a classification scheme on a numeric class attribute.
  RemoteEngine | A general purpose server for executing Task objects sent via RMI.
  RemoteExperiment | Holds all the necessary configuration information for a distributed experiment.
  RemoteExperimentEvent | Class encapsulating information on progress of a remote experiment
  RemoteExperimentSubTask | Class to encapsulate an experiment as a task that can be executed on a remote host.
  ResultMatrix | This matrix is a container for the datasets and classifier setups and their statistics.
  ResultMatrixCSV | Generates the matrix in CSV ('comma-separated values') format.
  ResultMatrixGnuPlot | Generates output for a data and script file for GnuPlot.
  ResultMatrixHTML | Generates the matrix output as HTML.
  ResultMatrixLatex | Generates the matrix output in LaTeX-syntax.
  ResultMatrixPlainText | Generates the output as plain text (for fixed width fonts).
  ResultMatrixSignificance | Only outputs the significance indicators.
  Stats | A class to store simple statistics.
  TaskStatusInfo | A class holding information for tasks being executed on RemoteEngines.