Add encode methods.

Author: felipexw

src/main/java/com/github/felipexw/util/Encoder.java

@@ -1,16 +1,18 @@
 package com.github.felipexw.util;
 
+import java.util.List;
+
 /**
  * Created by felipe.appio on 23/08/2016.
  */
 public abstract class Encoder {
 
- public static final String[] VALUES = {
- "A", "B", "C", "D", "F", "G", "H", "I", "J",
- "K", "L", "M", "N", "O", "P", "Q", "R", "S",
- "T", "U", "V", "X", "W", "Y", "Z"};
-
- public abstract int encode(String word);
+ public static final String[] VALUES = {
+ "A", "B", "C", "D", "F", "G", "H", "I", "J",
+ "K", "L", "M", "N", "O", "P", "Q", "R", "S",
+ "T", "U", "V", "X", "W", "Y", "Z"};
 
+ public abstract double[] encodeFromList(List<String> word);
 
+ public abstract double encode(String word);
 }

src/main/java/com/github/felipexw/util/StringEncoder.java

@@ -1,20 +1,24 @@
 package com.github.felipexw.util;
 
+import java.util.List;
+
 /**
  * Created by felipe.appio on 23/08/2016.
  */
 public class StringEncoder extends Encoder {
- @Override
- public int encode(String word) {
- int encondedValue = 0;
 
- for(int i =0; i < word.length(); i++){
- for( byte j = 0; j < VALUES.length; j++){
- String c = String.valueOf(word.charAt(i));
- if (c.equalsIgnoreCase(VALUES[j]))
- encondedValue += (j+1);
- }
- }
- return encondedValue;
+ @Override public double[] encodeFromList(List<String> words) {
+ double[] encodedValues = new double[words.size()];
+
+ for (int i = 0; i < words.size(); i++) {
+ String word = words.get(i);
+ encodedValues[i] = word.hashCode();
  }
+
+ return encodedValues;
+ }
+
+ @Override public double encode(String word) {
+ return word.hashCode();
+ }
 }

src/test/java/MultinomialNaiveBayesClassifierTest.java

@@ -1,5 +1,3 @@
-package com.github.felipexw.classifier.bayes;
-
 import org.junit.Test;
 
 /**
@@ -9,10 +7,5 @@ public class MultinomialNaiveBayesClassifierTest {
 
  @Test
  public void it_should_fail(){
- for(int i =0; i < 2; i++){
- String str = String.valueOf(i);
- System.out.println(str.hashCode());
- }
-
  }
 }