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Package samer.models

Class GaussianStats

  • All Implemented Interfaces:
    SafeTask, Task
    Direct Known Subclasses:
    GaussianStatsOnline

    public class GaussianStats
extends NullTask
    Collect statistics about a vector: accumulates sums and sums of products, then computes mean and covariance. This is NOT a model! Computing energies and probabilities directly from the first and second moments is horrible, since you need the inverse of the covariance matrix. You could, however, use this to train a Gaussian model.
    See Also:
    Serialized Form

    • Constructor Detail

      • GaussianStats

        public GaussianStats(VVector vec)
              throws java.lang.Exception
        Throws:
        java.lang.Exception

    • Method Detail

      • getMean

        public void getMean(VVector mu)

      • getMean

        public void getMean(double[] mu)

      • getCovariance

        public void getCovariance(Matrix C)

      • getCorrelation

        public void getCorrelation(Matrix R)

      • reset

        public void reset()
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