class Statistical::Rng::Frechet
Attributes
alpha[R]
generator[R]
location[R]
scale[R]
Public Class Methods
new(dobj = nil, seed = Random.new_seed)
click to toggle source
# File lib/statistical/rng/frechet.rb, line 15 def initialize(dobj = nil, seed = Random.new_seed) if dobj.nil? raise ArgumentError, 'Need a alpha-parametrized Frechet object!' elsif !dobj.is_a?(Statistical::Distribution::Frechet) raise TypeError, "Expected Frechet Distribution found #{dobj.class}" end @generator = Random.new(seed) @alpha = dobj.alpha @location = dobj.location @scale = dobj.scale @sdist = dobj end
Public Instance Methods
rand()
click to toggle source
Return the next random number from the sequence
@return [Float] next random number in the sequence
# File lib/statistical/rng/frechet.rb, line 32 def rand return @sdist.quantile(@generator.rand) end
type()
click to toggle source
Return the type of the source distribution
@return source distribution's type
# File lib/statistical/rng/frechet.rb, line 51 def type @sdist.class end
Private Instance Methods
eql?(other)
click to toggle source
Compare against another rng to see if they are the same
@return true if and only if, source distributions are the same and the
prng has the same initial state
# File lib/statistical/rng/frechet.rb, line 40 def eql?(other) return other.is_a?(self.class) && @generator == other.generator && @alpha == other.alpha && @location == other.location && @scale == other.scale end
Also aliased as: ==