incanter

Namespaces

incanter
- bayes
- censored
- charts
- core
- datasets
- distributions
- excel
- infix
- internal
- io
- latex
- main
- mongodb
- optimize
- pdf
- processing
- som
- stats
- symbolic

1.2.3-SNAPSHOT permalink

1.2.3-SNAPSHOT

vectorize

Returns the vectorization (i.e. vec) of the given matrix.
The vectorization of an m-by-n matrix A, denoted by vec(A)
is the m*n-by-1 column vector obtain by stacking the columns
of the matrix A on top of one another.

For instance:
(= (vectorize (matrix [[a b] [c d]])) (matrix [a c b d]))

Examples:
(def A (matrix [[1 2] [3 4]]))
(vectorize A)

References:
http://en.wikipedia.org/wiki/Vectorization_(mathematics)

0 Examples top

Source incanter/core.clj:764 top

(defn vectorize
  " Returns the vectorization (i.e. vec) of the given matrix.
    The vectorization of an m-by-n matrix A, denoted by vec(A)
    is the m*n-by-1 column vector obtain by stacking the columns
    of the matrix A on top of one another.

    For instance:
      (= (vectorize (matrix [[a b] [c d]])) (matrix [a c b d]))

    Examples:
      (def A (matrix [[1 2] [3 4]]))
      (vectorize A)

    References:
      http://en.wikipedia.org/wiki/Vectorization_(mathematics)
  "
  ([mat]
   (mapcat identity (trans mat))))

Vars in incanter.core/vectorize: defn identity mapcat

Used in 0 other vars

ClojureDocs(beta)

incanter

Namespaces

vectorize

incanter.core

0 Examples top

See Also top

Source incanter/core.clj:764 top

Comments top

No comments for vectorize. Log in to add a comment.