org.apache.mahout.math.Matrix.getRowLabelBindings()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中org.apache.mahout.math.Matrix.getRowLabelBindings()方法的一些代码示例，展示了Matrix.getRowLabelBindings()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Matrix.getRowLabelBindings()方法的具体详情如下：
包路径：org.apache.mahout.math.Matrix
类名称：Matrix
方法名：getRowLabelBindings

Matrix.getRowLabelBindings介绍

[英]Return a map of the current row label bindings of the receiver
[中]返回接收器当前行标签绑定的映射

代码示例

代码示例来源：origin: apache/mahout

@Test(expected = IllegalStateException.class)
public void testSettingLabelBindings() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 test.set("Fee", "Foo", 1, 1, 9);
 assertNotNull("row", test.getRowLabelBindings());
 assertNotNull("row", test.getRowLabelBindings());
 assertEquals("Fee", 1, test.getRowLabelBindings().get("Fee").intValue());
 assertEquals("Foo", 1, test.getColumnLabelBindings().get("Foo").intValue());
 assertEquals("FeeFoo", test.get(1, 1), test.get("Fee", "Foo"), EPSILON);
 test.get("Fie", "Foe");
}

代码示例来源：origin: apache/mahout

@Test
public void testLabelBindingSerialization() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 Map<String, Integer> rowBindings = Maps.newHashMap();
 rowBindings.put("Fee", 0);
 rowBindings.put("Fie", 1);
 rowBindings.put("Foe", 2);
 test.setRowLabelBindings(rowBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 Map<String, Integer> colBindings = Maps.newHashMap();
 colBindings.put("Foo", 0);
 colBindings.put("Bar", 1);
 colBindings.put("Baz", 2);
 test.setColumnLabelBindings(colBindings);
 assertEquals("col", colBindings, test.getColumnLabelBindings());
}

代码示例来源：origin: apache/mahout

@Test(expected = IllegalStateException.class)
public void testSettingLabelBindings() {
 Matrix m = matrixFactory(new double[][]{{1, 3, 4}, {5, 2, 3},
   {1, 4, 2}});
 assertNull("row bindings", m.getRowLabelBindings());
 assertNull("col bindings", m.getColumnLabelBindings());
 m.set("Fee", "Foo", 1, 2, 9);
 assertNotNull("row", m.getRowLabelBindings());
 assertNotNull("row", m.getRowLabelBindings());
 assertEquals("Fee", 1, m.getRowLabelBindings().get("Fee").intValue());
 assertEquals("Fee", 2, m.getColumnLabelBindings().get("Foo").intValue());
 assertEquals("FeeFoo", m.get(1, 2), m.get("Fee", "Foo"), EPSILON);
 m.get("Fie", "Foe");
}

代码示例来源：origin: apache/mahout

@Test
 public void testLabelBindingSerialization() {
  Matrix m = matrixFactory(new double[][]{{1, 3, 4}, {5, 2, 3},
    {1, 4, 2}});
  assertNull("row bindings", m.getRowLabelBindings());
  assertNull("col bindings", m.getColumnLabelBindings());
  Map<String, Integer> rowBindings = new HashMap<>();
  rowBindings.put("Fee", 0);
  rowBindings.put("Fie", 1);
  rowBindings.put("Foe", 2);
  m.setRowLabelBindings(rowBindings);
  assertEquals("row", rowBindings, m.getRowLabelBindings());
  Map<String, Integer> colBindings = new HashMap<>();
  colBindings.put("Foo", 0);
  colBindings.put("Bar", 1);
  colBindings.put("Baz", 2);
  m.setColumnLabelBindings(colBindings);
  assertEquals("col", colBindings, m.getColumnLabelBindings());
 }
}

代码示例来源：origin: apache/mahout

flags |= FLAG_SEQUENTIAL;
if (matrix.getRowLabelBindings() != null || matrix.getColumnLabelBindings() != null) {
 flags |= FLAG_LABELS;
 writeLabelBindings(out, matrix.getColumnLabelBindings(), matrix.getRowLabelBindings());

代码示例来源：origin: apache/mahout

@Test
public void testLabelBindings() {
 Matrix m = matrixFactory(new double[][]{{1, 3, 4}, {5, 2, 3},
   {1, 4, 2}});
 assertNull("row bindings", m.getRowLabelBindings());
 assertNull("col bindings", m.getColumnLabelBindings());
 Map<String, Integer> rowBindings = new HashMap<>();
 rowBindings.put("Fee", 0);
 rowBindings.put("Fie", 1);
 rowBindings.put("Foe", 2);
 m.setRowLabelBindings(rowBindings);
 assertEquals("row", rowBindings, m.getRowLabelBindings());
 Map<String, Integer> colBindings = new HashMap<>();
 colBindings.put("Foo", 0);
 colBindings.put("Bar", 1);
 colBindings.put("Baz", 2);
 m.setColumnLabelBindings(colBindings);
 assertEquals("row", rowBindings, m.getRowLabelBindings());
 assertEquals("Fee", m.get(0, 1), m.get("Fee", "Bar"), EPSILON);
 double[] newrow = {9, 8, 7};
 m.set("Foe", newrow);
 assertEquals("FeeBaz", m.get(0, 2), m.get("Fee", "Baz"), EPSILON);
}

代码示例来源：origin: apache/mahout

@Test
public void testLabelBindings() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 Map<String, Integer> rowBindings = Maps.newHashMap();
 rowBindings.put("Fee", 0);
 rowBindings.put("Fie", 1);
 test.setRowLabelBindings(rowBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 Map<String, Integer> colBindings = Maps.newHashMap();
 colBindings.put("Foo", 0);
 colBindings.put("Bar", 1);
 test.setColumnLabelBindings(colBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 assertEquals("Fee", test.get(0, 1), test.get("Fee", "Bar"), EPSILON);
 double[] newrow = {9, 8};
 test.set("Fie", newrow);
 assertEquals("FeeBar", test.get(0, 1), test.get("Fee", "Bar"), EPSILON);
}

代码示例来源：origin: apache/mahout

private static void compareMatrices(Matrix m, Matrix m2) {
 assertEquals(m.numRows(), m2.numRows());
 assertEquals(m.numCols(), m2.numCols());
 for (int r = 0; r < m.numRows(); r++) {
  for (int c = 0; c < m.numCols(); c++) {
   assertEquals(m.get(r, c), m2.get(r, c), EPSILON);
  }
 }
 Map<String,Integer> bindings = m.getRowLabelBindings();
 Map<String, Integer> bindings2 = m2.getRowLabelBindings();
 assertEquals(bindings == null, bindings2 == null);
 if (bindings != null) {
  assertEquals(bindings.size(), m.numRows());
  assertEquals(bindings.size(), bindings2.size());
  for (Map.Entry<String,Integer> entry : bindings.entrySet()) {
   assertEquals(entry.getValue(), bindings2.get(entry.getKey()));
  }
 }
 bindings = m.getColumnLabelBindings();
 bindings2 = m2.getColumnLabelBindings();
 assertEquals(bindings == null, bindings2 == null);
 if (bindings != null) {
  assertEquals(bindings.size(), bindings2.size());
  for (Map.Entry<String,Integer> entry : bindings.entrySet()) {
   assertEquals(entry.getValue(), bindings2.get(entry.getKey()));
  }
 }
}

代码示例来源：origin: apache/mahout

private static void doTestMatrixWritableEquals(Matrix m) throws IOException {
 Writable matrixWritable = new MatrixWritable(m);
 MatrixWritable matrixWritable2 = new MatrixWritable();
 writeAndRead(matrixWritable, matrixWritable2);
 Matrix m2 = matrixWritable2.get();
 compareMatrices(m, m2); 
 doCheckBindings(m2.getRowLabelBindings());
 doCheckBindings(m2.getColumnLabelBindings());    
}

代码示例来源：origin: org.apache.mahout/mahout-core

public void setMatrix(Matrix m) {
 int length = confusionMatrix.length;
 if (m.numRows() != m.numCols()) {
  throw new IllegalArgumentException(
    "ConfusionMatrix: matrix(" + m.numRows() + ',' + m.numCols() + ") must be square");
 }
 for (int r = 0; r < length; r++) {
  for (int c = 0; c < length; c++) {
   confusionMatrix[r][c] = (int) Math.round(m.get(r, c));
  }
 }
 Map<String,Integer> labels = m.getRowLabelBindings();
 if (labels == null) {
  labels = m.getColumnLabelBindings();
 }
 if (labels != null) {
  String[] sorted = sortLabels(labels);
  verifyLabels(length, sorted);
  labelMap.clear();
  for (int i = 0; i < length; i++) {
   labelMap.put(sorted[i], i);
  }
 }
}

代码示例来源：origin: org.apache.mahout/mahout-mrlegacy

public void setMatrix(Matrix m) {
 int length = confusionMatrix.length;
 if (m.numRows() != m.numCols()) {
  throw new IllegalArgumentException(
    "ConfusionMatrix: matrix(" + m.numRows() + ',' + m.numCols() + ") must be square");
 }
 for (int r = 0; r < length; r++) {
  for (int c = 0; c < length; c++) {
   confusionMatrix[r][c] = (int) Math.round(m.get(r, c));
  }
 }
 Map<String,Integer> labels = m.getRowLabelBindings();
 if (labels == null) {
  labels = m.getColumnLabelBindings();
 }
 if (labels != null) {
  String[] sorted = sortLabels(labels);
  verifyLabels(length, sorted);
  labelMap.clear();
  for (int i = 0; i < length; i++) {
   labelMap.put(sorted[i], i);
  }
 }
}

代码示例来源：origin: org.apache.mahout/mahout-mr

public void setMatrix(Matrix m) {
 int length = confusionMatrix.length;
 if (m.numRows() != m.numCols()) {
  throw new IllegalArgumentException(
    "ConfusionMatrix: matrix(" + m.numRows() + ',' + m.numCols() + ") must be square");
 }
 for (int r = 0; r < length; r++) {
  for (int c = 0; c < length; c++) {
   confusionMatrix[r][c] = (int) Math.round(m.get(r, c));
  }
 }
 Map<String,Integer> labels = m.getRowLabelBindings();
 if (labels == null) {
  labels = m.getColumnLabelBindings();
 }
 if (labels != null) {
  String[] sorted = sortLabels(labels);
  verifyLabels(length, sorted);
  labelMap.clear();
  for (int i = 0; i < length; i++) {
   labelMap.put(sorted[i], i);
  }
 }
}

代码示例来源：origin: org.apache.mahout/mahout-core

/** Writes a typed Matrix instance to the output stream */
 public static void writeMatrix(DataOutput out, Matrix matrix) throws IOException {
  int flags = 0;
  Vector row = matrix.viewRow(0);
  if (row.isDense()) {
   flags |= FLAG_DENSE;
  }
  if (row.isSequentialAccess()) {
   flags |= FLAG_SEQUENTIAL;
  }
  if (matrix.getRowLabelBindings() != null || matrix.getColumnLabelBindings() != null) {
   flags |= FLAG_LABELS;
  }
  out.writeInt(flags);

  out.writeInt(matrix.rowSize());
  out.writeInt(matrix.columnSize());

  for (int i = 0; i < matrix.rowSize(); i++) {
   VectorWritable.writeVector(out, matrix.viewRow(i), false);
  }
  if ((flags & FLAG_LABELS) != 0) {
   writeLabelBindings(out, matrix.getColumnLabelBindings(), matrix.getRowLabelBindings());
  }
 }
}

代码示例来源：origin: cloudera/mahout

@Test(expected = IllegalStateException.class)
public void testSettingLabelBindings() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 test.set("Fee", "Foo", 1, 1, 9);
 assertNotNull("row", test.getRowLabelBindings());
 assertNotNull("row", test.getRowLabelBindings());
 assertEquals("Fee", 1, test.getRowLabelBindings().get("Fee").intValue());
 assertEquals("Foo", 1, test.getColumnLabelBindings().get("Foo").intValue());
 assertEquals("FeeFoo", test.get(1, 1), test.get("Fee", "Foo"), EPSILON);
 test.get("Fie", "Foe");
}

代码示例来源：origin: cloudera/mahout

@Test
public void testLabelBindingSerialization() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 Map<String, Integer> rowBindings = Maps.newHashMap();
 rowBindings.put("Fee", 0);
 rowBindings.put("Fie", 1);
 rowBindings.put("Foe", 2);
 test.setRowLabelBindings(rowBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 Map<String, Integer> colBindings = Maps.newHashMap();
 colBindings.put("Foo", 0);
 colBindings.put("Bar", 1);
 colBindings.put("Baz", 2);
 test.setColumnLabelBindings(colBindings);
 assertEquals("col", colBindings, test.getColumnLabelBindings());
}

代码示例来源：origin: cloudera/mahout

@Test
 public void testLabelBindingSerialization() {
  Matrix m = matrixFactory(new double[][]{{1, 3, 4}, {5, 2, 3},
    {1, 4, 2}});
  assertNull("row bindings", m.getRowLabelBindings());
  assertNull("col bindings", m.getColumnLabelBindings());
  Map<String, Integer> rowBindings = Maps.newHashMap();
  rowBindings.put("Fee", 0);
  rowBindings.put("Fie", 1);
  rowBindings.put("Foe", 2);
  m.setRowLabelBindings(rowBindings);
  assertEquals("row", rowBindings, m.getRowLabelBindings());
  Map<String, Integer> colBindings = Maps.newHashMap();
  colBindings.put("Foo", 0);
  colBindings.put("Bar", 1);
  colBindings.put("Baz", 2);
  m.setColumnLabelBindings(colBindings);
  assertEquals("col", colBindings, m.getColumnLabelBindings());
 }
}

代码示例来源：origin: cloudera/mahout

@Test(expected = IllegalStateException.class)
public void testSettingLabelBindings() {
 Matrix m = matrixFactory(new double[][]{{1, 3, 4}, {5, 2, 3},
   {1, 4, 2}});
 assertNull("row bindings", m.getRowLabelBindings());
 assertNull("col bindings", m.getColumnLabelBindings());
 m.set("Fee", "Foo", 1, 2, 9);
 assertNotNull("row", m.getRowLabelBindings());
 assertNotNull("row", m.getRowLabelBindings());
 assertEquals("Fee", 1, m.getRowLabelBindings().get("Fee").intValue());
 assertEquals("Fee", 2, m.getColumnLabelBindings().get("Foo").intValue());
 assertEquals("FeeFoo", m.get(1, 2), m.get("Fee", "Foo"), EPSILON);
 m.get("Fie", "Foe");
}

代码示例来源：origin: cloudera/mahout

@Test
public void testLabelBindings() {
 assertNull("row bindings", test.getRowLabelBindings());
 assertNull("col bindings", test.getColumnLabelBindings());
 Map<String, Integer> rowBindings = Maps.newHashMap();
 rowBindings.put("Fee", 0);
 rowBindings.put("Fie", 1);
 test.setRowLabelBindings(rowBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 Map<String, Integer> colBindings = Maps.newHashMap();
 colBindings.put("Foo", 0);
 colBindings.put("Bar", 1);
 test.setColumnLabelBindings(colBindings);
 assertEquals("row", rowBindings, test.getRowLabelBindings());
 assertEquals("Fee", test.get(0, 1), test.get("Fee", "Bar"), EPSILON);
 double[] newrow = {9, 8};
 test.set("Fie", newrow);
 assertEquals("FeeBar", test.get(0, 1), test.get("Fee", "Bar"), EPSILON);
}

代码示例来源：origin: org.apache.mahout/mahout-mrlegacy

@Test
public void testGetMatrix() {
 ConfusionMatrix confusionMatrix = fillConfusionMatrix(VALUES, LABELS, DEFAULT_LABEL);
 Matrix m = confusionMatrix.getMatrix();
 Map<String, Integer> rowLabels = m.getRowLabelBindings();
 assertEquals(confusionMatrix.getLabels().size(), m.numCols());
 assertTrue(rowLabels.keySet().contains(LABELS[0]));
 assertTrue(rowLabels.keySet().contains(LABELS[1]));
 assertTrue(rowLabels.keySet().contains(DEFAULT_LABEL));
 assertEquals(2, confusionMatrix.getCorrect(LABELS[0]));
 assertEquals(20, confusionMatrix.getCorrect(LABELS[1]));
 assertEquals(0, confusionMatrix.getCorrect(DEFAULT_LABEL));
}

代码示例来源：origin: org.apache.mahout/mahout-mrlegacy

private static void doTestMatrixWritableEquals(Matrix m) throws IOException {
 Writable matrixWritable = new MatrixWritable(m);
 MatrixWritable matrixWritable2 = new MatrixWritable();
 writeAndRead(matrixWritable, matrixWritable2);
 Matrix m2 = matrixWritable2.get();
 compareMatrices(m, m2); 
 doCheckBindings(m2.getRowLabelBindings());
 doCheckBindings(m2.getColumnLabelBindings());    
}

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