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git-svn-id: https://cppannotations.svn.sourceforge.net/svnroot/cppannotations/trunk@498 f6dd340e-d3f9-0310-b409-bdd246841980
47 lines
1.9 KiB
Text
47 lines
1.9 KiB
Text
The ti(geometric_distribution<IntType = int>) is used to model the number
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of bernoulli trials (cf. ref(BERNOULLI)) needed until the first success.
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It has one parameter, tt(prob), representing the probability of success in an
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individual bernoulli trial.
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Defined types:
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verb(
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typedef IntType result_type;
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struct param_type
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{
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explicit param_type(double prob = 0.5);
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double p() const;
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};
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)
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Constructors, members and example:
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itemization(
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itt(geometric_distribution<>(double prob = 0.5))
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constructs a geometric distribution for bernoulli trials each having
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probability tt(prob) of success.
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itt(geometric_distribution<>(param_type const ¶m))
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constructs a geometric distribution according to the values stored in
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the tt(param) struct.
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itt(double p() const)nl()
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returns the distribution's tt(prob) parameter;
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itt(param_type param() const)nl()
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returns the object's tt(param_type) structure;
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itt(void param(const param_type ¶m))
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redefines the parameters of the distribution;
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itt(result_type min() const)nl()
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returns the distribution's lower bound (= tt(0));
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itt(result_type max() const)nl()
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returns the distribution's upper bound;
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itt(template<typename URNG> result_type operator()(URNG &urng))nl()
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returns the next random value from the geometric distribution
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itt(template<typename URNG> result_type operator())nl()
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tt((URNG &urng, param_type ¶m))nl()
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returns the next random value from a geometric distribution
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initialized by the provided tt(param) struct.
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it() The random number generator that is passed to the generating
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functions must return integral values. Here is an example showing how
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the geometric distribution can be used:
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verbinclude(examples/geometric.cc)
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)
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