org.apache.commons.math3.linear.SingularMatrixException: matrix is singular

GitHub | harryhoch | 5 months ago
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  1. 0

    singular matrix

    GitHub | 5 months ago | harryhoch
    org.apache.commons.math3.linear.SingularMatrixException: matrix is singular
  2. 0

    Best way to invert a n x n Matrix

    Stack Overflow | 3 years ago | user3086819
    org.apache.commons.math3.linear.SingularMatrixException: matrix is singular

    Root Cause Analysis

    1. org.apache.commons.math3.linear.SingularMatrixException

      matrix is singular

      at org.apache.commons.math3.linear.LUDecomposition$Solver.solve()
    2. Apache Commons Math
      LUDecomposition$Solver.getInverse
      1. org.apache.commons.math3.linear.LUDecomposition$Solver.solve(LUDecomposition.java:334)
      2. org.apache.commons.math3.linear.LUDecomposition$Solver.getInverse(LUDecomposition.java:387)
      2 frames
    3. edu.cmu.tetrad
      IndTestFisherZ.isIndependent
      1. edu.cmu.tetrad.util.TetradMatrix.inverse(TetradMatrix.java:362)
      2. edu.cmu.tetrad.util.StatUtils.partialCorrelation(StatUtils.java:1757)
      3. edu.cmu.tetrad.search.IndTestFisherZ.partialCorrelation(IndTestFisherZ.java:239)
      4. edu.cmu.tetrad.search.IndTestFisherZ.isIndependent(IndTestFisherZ.java:184)
      4 frames