module Enumerable(T)
Overview
The Enumerable
mixin provides collection classes with several traversal, searching,
filtering and querying methods.
Including types must provide an each
method, which yields successive members
of the collection.
For example:
class Three
include Enumerable (Int32 )
def each (& )
yield 1
yield 2
yield 3
end
end
three = Three .new
three.to_a # => [1, 2, 3]
three.select & .odd? # => [1, 3]
three.all? { | x| x < 10 } # => true
Note that most search and filter methods traverse an Enumerable eagerly,
producing an Array
as the result. For a lazy alternative refer to
the Iterator
and Iterable
modules.
Included Modules
Defined in:
lib/math/correlation.cr
lib/math/frequency.cr
lib/math/macd.cr
lib/math/mean.cr
lib/math/median.cr
lib/math/quartile.cr
lib/math/std_dev.cr
Instance methods inherited from module Math::Quartile
first_quartile : Float64
first_quartile ,
interquartile_range : Float64
interquartile_range ,
iqr : Float64
iqr ,
lower_fence(k : Number = 1.5 ) : Float64
lower_fence ,
lower_outliers(k : Number = 1.5 ) : Array
lower_outliers ,
lower_quartile : Float64
lower_quartile ,
quartiles : Array(Float64)
quartiles ,
second_quartile : Float64
second_quartile ,
third_quartile : Float64
third_quartile ,
upper_fence(k : Number = 1.5 ) : Float64
upper_fence ,
upper_outliers(k : Number = 1.5 ) : Array
upper_outliers ,
upper_quartile : Float64
upper_quartile
Instance methods inherited from module Math::Median
median
median
Instance methods inherited from module Math::MACD
macd(n : Int)
macd
Instance methods inherited from module Math::Frequency(T)
all_frequencies : Hash(T, Float64)
all_frequencies ,
frequency_of(value : T) : Float64
frequency_of
Instance methods inherited from module Math::Correlation
correlation_coef(rhs : Enumerable)
correlation_coef ,
covariance(rhs : Enumerable)
covariance
standard_deviation
standard_deviation ,
variance
variance
Instance methods inherited from module Math::Mean
geometric_mean
geometric_mean ,
harmonic_mean
harmonic_mean ,
mean
mean ,
quadratic_mean
quadratic_mean