本文整理了Java中org.apache.mahout.math.Vector.assign()方法的一些代码示例，展示了Vector.assign()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。Vector.assign()方法的具体详情如下：
包路径：org.apache.mahout.math.Vector
类名称：Vector
方法名：assign

Vector.assign介绍

[英]Assign the value to all elements of the receiver
[中]将该值分配给接收器的所有元素

代码示例

代码示例来源：origin: apache/mahout

@Override
public Vector assign(Vector other) {
 delegate.assign(other);
 return this;
}

代码示例来源：origin: apache/mahout

@Override
public Vector assign(DoubleFunction function) {
 delegate.assign(function);
 return this;
}

代码示例来源：origin: apache/mahout

@Override
public Vector assign(Vector other, DoubleDoubleFunction function) {
 delegate.assign(other, function);
 return this;
}

代码示例来源：origin: apache/mahout

@SuppressWarnings("CloneDoesntCallSuperClone")
@Override
public Vector clone() {
 Vector v = new DenseVector(size());
 v.assign(this, Functions.PLUS);
 return v;
}

代码示例来源：origin: apache/mahout

private static Vector createOptimizedCopy(Vector vector) {
 Vector result;
 if (vector.isDense()) {
  result = vector.like().assign(vector, Functions.SECOND_LEFT_ZERO);
 } else {
  result = vector.clone();
 }
 return result;
}

代码示例来源：origin: apache/mahout

@Override
public Vector times(Vector that) {
 if (size != that.size()) {
  throw new CardinalityException(size, that.size());
 }
 if (this.getNumNondefaultElements() <= that.getNumNondefaultElements()) {
  return createOptimizedCopy(this).assign(that, Functions.MULT);
 } else {
  return createOptimizedCopy(that).assign(this, Functions.MULT);
 }
}

代码示例来源：origin: apache/mahout

@Override
public Vector plus(Vector that) {
 if (size != that.size()) {
  throw new CardinalityException(size, that.size());
 }
 return createOptimizedCopy().assign(that, Functions.PLUS);
}

代码示例来源：origin: apache/mahout

private static Vector randomVector() {
  Vector v = new DenseVector(20);
  v.assign(new DoubleFunction() {
   private final Random gen = RandomUtils.getRandom();

   @Override
   public double apply(double arg1) {
    return gen.nextDouble();
   }
  });
  return v;
 }
}

代码示例来源：origin: apache/mahout

@Test(expected = CardinalityException.class)
public void testAssignDoubleArrayCardinality() {
 double[] array = new double[test.size() + 1];
 test.assign(array);
}

代码示例来源：origin: apache/mahout

@Test(expected = CardinalityException.class)
public void testAssignVectorCardinality() {
 Vector other = new DenseVector(test.size() - 1);
 test.assign(other);
}

代码示例来源：origin: apache/mahout

@Test(expected = CardinalityException.class)
public void testAssignVectorCardinality() {
 Vector other = new DenseVector(test.size() - 1);
 test.assign(other);
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignDoubleArray() {
 double[] array = new double[test.size()];
 test.assign(array);
 for (int i = 0; i < values.length; i++) {
  assertEquals("value[" + i + ']', 0.0, test.getQuick(i), EPSILON);
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignDouble() {
 test.assign(0);
 for (int i = 0; i < test.size(); i++) {
  assertEquals("value[" + i + ']', 0.0, test.getQuick(i), EPSILON);
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignBinaryFunction2() throws Exception {
 test.assign(Functions.PLUS, 4);
 for (int i = 0; i < test.size(); i++) {
  assertEquals("value[" + i + ']', values[i + 1] + 4, test.getQuick(i), EPSILON);
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignBinaryFunction3() throws Exception {
 test.assign(new TimesFunction(), 4);
 for (int i = 0; i < test.size(); i++) {
  assertEquals("value[" + i + ']', values[i + 1] * 4, test.getQuick(i), EPSILON);
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignBinaryFunction() {
 test.assign(test, Functions.PLUS);
 for (int i = 0; i < values.length; i++) {
  if (i % 2 == 0) {
   assertEquals("get [" + i + ']', 0.0, test.get(i), EPSILON);
  } else {
   assertEquals("value[" + i + ']', 2 * values[i - 1], test.getQuick(i), EPSILON);
  }
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignBinaryFunction2() {
 test.assign(Functions.plus(4));
 for (int i = 0; i < values.length; i++) {
  if (i % 2 == 0) {
   assertEquals("get [" + i + ']', 4.0, test.get(i), EPSILON);
  } else {
   assertEquals("value[" + i + ']', values[i - 1] + 4, test.getQuick(i), EPSILON);
  }
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testAssignBinaryFunction3() {
 test.assign(Functions.mult(4));
 for (int i = 0; i < values.length; i++) {
  if (i % 2 == 0) {
   assertEquals("get [" + i + ']', 0.0, test.get(i), EPSILON);
  } else {
   assertEquals("value[" + i + ']', values[i - 1] * 4, test.getQuick(i), EPSILON);
  }
 }
}

代码示例来源：origin: apache/mahout

@Test
public void testViewRow() {
 Vector row = test.viewRow(1);
 assertEquals("row size", 2, row.getNumNondefaultElements());
 //create a matrix with an unassigned row 0
 Matrix matrix = new SparseMatrix(1, 1);
 Vector view = matrix.viewRow(0);
 final double value = 1.23;
 view.assign(value);
 //test whether the update in the view is reflected in the matrix
 assertEquals("Matrix value", view.getQuick(0), matrix.getQuick(0, 0), EPSILON);
}

代码示例来源：origin: apache/mahout

@Test
public void randomMatrix() {
 Matrix a = new DenseMatrix(60, 60).assign(Functions.random());
 QRDecomposition qr = new QRDecomposition(a);
 // how close is Q to actually being orthornormal?
 double maxIdent = qr.getQ().transpose().times(qr.getQ()).viewDiagonal().assign(Functions.plus(-1)).norm(1);
 assertEquals(0, maxIdent, 1.0e-13);
 // how close is Q R to the original value of A?
 Matrix z = qr.getQ().times(qr.getR()).minus(a);
 double maxError = z.aggregate(Functions.MIN, Functions.ABS);
 assertEquals(0, maxError, 1.0e-13);
}