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cdf-neg-binomial

incanter.stats

  • (cdf-neg-binomial x & options)
Returns the Negative Binomial cdf of the given value of x. It will return a sequence
of values, if x is a sequence. Same as R's dnbinom

Options:
:size (default 10)
:prob (default 1/2)

See also:
cdf-neg-binomial and sample-neg-binomial

References:
http://incanter.org/docs/parallelcolt/api/cern/jet/random/tdouble/NegativeBinomial.html
http://en.wikipedia.org/wiki/Negative_binomial_distribution
http://en.wikipedia.org/wiki/Cumulative_distribution_function

Example:
(cdf-neg-binomial 10 :prob 1/2 :size 20)

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Plus_12x12 Minus_12x12 Source incanter/stats.clj:1337 top

(defn cdf-neg-binomial
" Returns the Negative Binomial cdf of the given value of x. It will return a sequence
  of values, if x is a sequence. Same as R's dnbinom

  Options:
    :size (default 10)
    :prob (default 1/2)

  See also:
      cdf-neg-binomial and sample-neg-binomial

  References:
      http://incanter.org/docs/parallelcolt/api/cern/jet/random/tdouble/NegativeBinomial.html
      http://en.wikipedia.org/wiki/Negative_binomial_distribution
      http://en.wikipedia.org/wiki/Cumulative_distribution_function

  Example:
      (cdf-neg-binomial 10 :prob 1/2 :size 20)
"
  ([x & options]
    (let [opts (when options (apply assoc {} options))
          size (or (:size opts) 10)
          prob (or (:prob opts) 1/2)
          lower-tail? (if (false? (:lower-tail opts)) false true)
          cdf-fx (if lower-tail?
                  (fn [x1] (Probability/negativeBinomial x1 size prob))
                  (fn [x1] (Probability/negativeBinomialComplemented x1 size prob)))]
      (if (coll? x)
        (map cdf-fx x)
        (cdf-fx x)))))
Vars in incanter.stats/cdf-neg-binomial: coll? defn let map
Used in 0 other vars

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