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condition

incanter.core

  • (condition mat)
Returns the two norm condition number, which is max(S) / min(S), where S is the diagonal matrix of singular values from an SVD decomposition.


Examples:

(use 'incanter.core)
(def foo (matrix (range 9) 3))
(condition foo)


References:
http://en.wikipedia.org/wiki/Condition_number
http://incanter.org/docs/parallelcolt/api/cern/colt/matrix/tdouble/algo/decomposition/DoubleSingularValueDecompositionDC.html
© incanter See http://incanter.org for copyright and license details.

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Plus_12x12 Minus_12x12 Source incanter/core.clj:998 top 

(defn condition
" Returns the two norm condition number, which is max(S) / min(S), where S is the diagonal matrix of singular values from an SVD decomposition.


  Examples:

  (use 'incanter.core)
  (def foo (matrix (range 9) 3))
  (condition foo)


  References:
    http://en.wikipedia.org/wiki/Condition_number
    http://incanter.org/docs/parallelcolt/api/cern/colt/matrix/tdouble/algo/decomposition/DoubleSingularValueDecompositionDC.html
"
  ([mat]
    (.cond (DenseDoubleSingularValueDecomposition. mat, true, true))))
© incanter See http://incanter.org for copyright and license details.
Vars in incanter.core/condition: defn
Used in 0 other vars

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