Examples of minus()


Examples of org.apache.mahout.math.Vector.minus()

   *          The color of the rectangle's stroke.
   */
  protected static void plotClusteredRectangle(Graphics2D g2, Vector v, Vector dv, Color color) {
    double[] flip = {1, -1};
    Vector v2 = v.times(new DenseVector(flip));
    v2 = v2.minus(dv.divide(2));
    int h = SIZE / 2;
    double x = v2.get(0) + h;
    double y = v2.get(1) + h;
   
    g2.setStroke(new BasicStroke(1));
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Examples of org.apache.mahout.math.Vector.minus()

   *          a Vector of rectangle dimensions
   */
  protected static void plotRectangle(Graphics2D g2, Vector v, Vector dv) {
    double[] flip = {1, -1};
    Vector v2 = v.times(new DenseVector(flip));
    v2 = v2.minus(dv.divide(2));
    int h = SIZE / 2;
    double x = v2.get(0) + h;
    double y = v2.get(1) + h;
    g2.draw(new Rectangle2D.Double(x * DS, y * DS, dv.get(0) * DS, dv.get(1) * DS));
  }
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Examples of org.apache.mahout.math.Vector.minus()

   *          a Vector of ellipse dimensions
   */
  protected static void plotEllipse(Graphics2D g2, Vector v, Vector dv) {
    double[] flip = {1, -1};
    Vector v2 = v.times(new DenseVector(flip));
    v2 = v2.minus(dv.divide(2));
    int h = SIZE / 2;
    double x = v2.get(0) + h;
    double y = v2.get(1) + h;
    g2.draw(new Ellipse2D.Double(x * DS, y * DS, dv.get(0) * DS, dv.get(1) * DS));
  }
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Examples of org.apache.mahout.math.Vector.minus()

    assertEquals(0, meanAbsoluteError , expected_mean_error);
    assertEquals(0, maxAbsoluteError, expected_absolute_error);

    // convenience methods should give the same results
    Vector v = lr.classifyScalar(input);
    assertEquals(0, v.minus(tmp.viewColumn(0)).norm(1), 1.0e-5);
    v = lr.classifyFull(input).viewColumn(1);
    assertEquals(0, v.minus(tmp.viewColumn(0)).norm(1), 1.0e-4);
  }

  /**
 
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Examples of org.apache.mahout.math.Vector.minus()

    // convenience methods should give the same results
    Vector v = lr.classifyScalar(input);
    assertEquals(0, v.minus(tmp.viewColumn(0)).norm(1), 1.0e-5);
    v = lr.classifyFull(input).viewColumn(1);
    assertEquals(0, v.minus(tmp.viewColumn(0)).norm(1), 1.0e-4);
  }

  /**
   * Permute the integers from 0 ... max-1
   *
 
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Examples of org.apache.mahout.math.Vector.minus()

    assertEquals(123, v2.maxValue(), 0);
    assertEquals(2 * 123, v2.norm(1), 0);

    // v1 has one probe, v2 has two.  The first probe in v2 should be in the same
    // place as the only probe in v1
    v1 = v2.minus(v1);
    assertEquals(123, v1.maxValue(), 0);
    assertEquals(123, v1.norm(1), 0);

    Vector v3 = new DenseVector(20);
    enc.setProbes(2);
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Examples of org.apache.mahout.math.Vector.minus()

    assertEquals(123, v2.maxValue(), 0);
    assertEquals(2 * 123, v2.norm(1), 0);

    // v1 has one probe, v2 has two.  The first probe in v2 should be in the same
    // place as the only probe in v1
    v1 = v2.minus(v1);
    assertEquals(123, v1.maxValue(), 0);
    assertEquals(123, v1.norm(1), 0);

    Vector v3 = new DenseVector(20);
    enc.setProbes(2);
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Examples of org.apache.mahout.math.Vector.minus()

    // this should set the same 6 locations to the same values
    Vector v3 = new DenseVector(200);
    w.addToVector("test1", v3);
    w.addToVector("and", v3);
    w.addToVector("more", v3);
    assertEquals(0, v3.minus(v2).norm(1), 0);

    // moreover, the locations set in the unweighted case should be the same as in the weighted case
    assertEquals(v3.zSum(), v3.dot(v1), 0);
  }
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Examples of org.apache.mahout.matrix.Vector.minus()

   */
  void plotRectangle(Graphics2D g2, Vector v, Vector dv) {
    int h = size / 2;
    double[] flip = { 1, -1 };
    Vector v2 = v.copy().assign(new DenseVector(flip), new TimesFunction());
    v2 = v2.minus(dv.divide(2));
    double x = v2.get(0) + h;
    double y = v2.get(1) + h;
    g2.draw(new Rectangle2D.Double(x * ds, y * ds, dv.get(0) * ds, dv.get(1)
        * ds));
  }
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Examples of org.apache.mahout.matrix.Vector.minus()

   */
  void plotEllipse(Graphics2D g2, Vector v, Vector dv) {
    int h = size / 2;
    double[] flip = { 1, -1 };
    Vector v2 = v.copy().assign(new DenseVector(flip), new TimesFunction());
    v2 = v2.minus(dv.divide(2));
    double x = v2.get(0) + h;
    double y = v2.get(1) + h;
    g2
        .draw(new Ellipse2D.Double(x * ds, y * ds, dv.get(0) * ds, dv.get(1)
            * ds));
 
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