(defn to-matrix
" Converts a dataset into a matrix. Equivalent to R's as.matrix function
for datasets.
Options:
:dummies (default false) -- if true converts non-numeric variables into sets
of binary dummy variables, otherwise converts
them into numeric codes.
"
([dataset & options]
(let [opts (when options (apply assoc {} options))
dummies? (if (true? (:dummies opts)) true false)]
(reduce bind-columns
(map #(string-to-categorical dataset % dummies?)
(range (count (keys (:column-names dataset)))))))))
Used in 0 other vars
Source
incanter/core.clj:2194
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