Package org.apache.mahout.matrix

Examples of org.apache.mahout.matrix.SquareRootFunction

96
97
98
99
100
101
102
103
104
105
106
    }
    mean = s1.divide(s0);
    // compute the average of the component stds
    if (s0 > 1) {
      Vector std = s2.times(s0).minus(s1.times(s1)).assign(
          new SquareRootFunction()).divide(s0);
      stdDev = std.zSum() / s1.size();
    } else {
      stdDev = Double.MIN_VALUE;
    }
  }
View Full Code Here
92
93
94
95
96
97
98
99
100
101
102
      return;
    }
    mean = s1.divide(s0);
    // compute the two component stds
    if (s0 > 1) {
      stdDev = s2.times(s0).minus(s1.times(s1)).assign(new SquareRootFunction())
          .divide(s0);
    } else {
      stdDev.assign(Double.MIN_NORMAL);
    }
  }
View Full Code Here
323
324
325
326
327
328
329
330
331
  }

  /** @return the std */
  public double getStd() {
    Vector stds = pointSquaredTotal.times(getNumPoints()).minus(
          getPointTotal().times(getPointTotal())).assign(new SquareRootFunction())
          .divide(getNumPoints());
    return stds.zSum() / 2;
  }
View Full Code Here
333
334
335
336
337
338
339
340
341
342
343
344
  /** Compute a "standard deviation" value to use as the "radius" of the cluster for display purposes */
  public double std() {
    if (s0 > 0) {
      Vector radical = s2.times(s0).minus(s1.times(s1));
      radical = radical.times(radical).assign(new SquareRootFunction());
      Vector stds = radical.assign(new SquareRootFunction()).divide(s0);
      return stds.zSum() / stds.size();
    } else {
      return 0;
    }
  }
View Full Code Here
TOP

Related Classes of org.apache.mahout.matrix.SquareRootFunction

  • org.apache.mahout.clustering.dirichlet.models.AsymmetricSampledNormalModel
  • org.apache.mahout.clustering.dirichlet.models.NormalModel
  • org.apache.mahout.clustering.fuzzykmeans.SoftCluster
  • org.apache.mahout.clustering.kmeans.Cluster
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.