class Statistics::Distributions::Normal

• Statistics::Distributions::Normal
• Statistics::Distributions::ContinuousDistribution
• Statistics::Distributions::Distribution(Float64)
• Reference
• Object

Overview

Represents a normal distribution.

See wikipedia for more details.

Defined in:

lib/distributions.cr

Constant Summary

PDF_COEFFICIENT = 1 / (Math.sqrt(TWO_PI))

TWO_PI = 2 * Math::PI

Constructors

• .new(mean : Float64 = 0, std : Float64 = 1)

  Creates a normal distribution with the given mean and std.

Instance Method Summary

• #pdf(x)

  The Probability Density Function (PDF) of a continuous random variable.

• #rand : Float64

  Samples a random variable with the given distribution.

Constructor Detail

Instance Method Detail