| 1 | package de.ugoe.cs.quest.commands.usage;
|
|---|
| 2 |
|
|---|
| 3 | import java.util.List;
|
|---|
| 4 |
|
|---|
| 5 | import de.ugoe.cs.quest.CommandHelpers;
|
|---|
| 6 | import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel;
|
|---|
| 7 | import de.ugoe.cs.util.console.Command;
|
|---|
| 8 | import de.ugoe.cs.util.console.Console;
|
|---|
| 9 | import de.ugoe.cs.util.console.GlobalDataContainer;
|
|---|
| 10 |
|
|---|
| 11 | /**
|
|---|
| 12 | * <p>
|
|---|
| 13 | * Command to calculate the entropy of first-order Markov models.
|
|---|
| 14 | * </p>
|
|---|
| 15 | *
|
|---|
| 16 | * @author Steffen Herbold
|
|---|
| 17 | * @version 1.0
|
|---|
| 18 | */
|
|---|
| 19 | public class CMDcalcEntropy implements Command {
|
|---|
| 20 |
|
|---|
| 21 | /*
|
|---|
| 22 | * (non-Javadoc)
|
|---|
| 23 | *
|
|---|
| 24 | * @see de.ugoe.cs.util.console.Command#help()
|
|---|
| 25 | */
|
|---|
| 26 | @Override
|
|---|
| 27 | public String help() {
|
|---|
| 28 | return "calcEntropy <modelname>";
|
|---|
| 29 | }
|
|---|
| 30 |
|
|---|
| 31 | /*
|
|---|
| 32 | * (non-Javadoc)
|
|---|
| 33 | *
|
|---|
| 34 | * @see de.ugoe.cs.util.console.Command#run(java.util.List)
|
|---|
| 35 | */
|
|---|
| 36 | @Override
|
|---|
| 37 | public void run(List<Object> parameters) {
|
|---|
| 38 | String modelname = "";
|
|---|
| 39 | try {
|
|---|
| 40 | modelname = (String) parameters.get(0);
|
|---|
| 41 | } catch (Exception e) {
|
|---|
| 42 | throw new IllegalArgumentException();
|
|---|
| 43 | }
|
|---|
| 44 |
|
|---|
| 45 | FirstOrderMarkovModel model = null;
|
|---|
| 46 | Object dataObject = GlobalDataContainer.getInstance()
|
|---|
| 47 | .getData(modelname);
|
|---|
| 48 | if (dataObject == null) {
|
|---|
| 49 | CommandHelpers.objectNotFoundMessage(modelname);
|
|---|
| 50 | return;
|
|---|
| 51 | }
|
|---|
| 52 | if (!(dataObject instanceof FirstOrderMarkovModel)) {
|
|---|
| 53 | CommandHelpers.objectNotType(modelname, "FirstOrderMarkovModel");
|
|---|
| 54 | return;
|
|---|
| 55 | }
|
|---|
| 56 | model = (FirstOrderMarkovModel) dataObject;
|
|---|
| 57 | double entropy = model.calcEntropy();
|
|---|
| 58 | if (!Double.isNaN(entropy)) {
|
|---|
| 59 | Console.println("entropy: " + entropy);
|
|---|
| 60 | }
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | }
|
|---|
