Gemstone Numeric Library
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# RandomNumberExtensionsToLogNormalDistribution Method

Linq extension function used to Transform an enumerable of UniformRandomNumber to an enumerable of LogNormalRandomNumber

## Definition

Namespace: Gemstone.Numeric.Random
Assembly: Gemstone.Numeric (in Gemstone.Numeric.dll) Version: 1.0.154 -- Release Build+9c55d1e3f6f7e7a168a3c7771afde278e919c61c
C#
View Source Request Example

    public static IEnumerable<LogNormalRandomNumber> ToLogNormalDistribution(
    	this IEnumerable<UniformRandomNumber> uniforms,
    	double power = 2.71828182845905,
    	double mean = 0,
    	double variance = 1
    )

VB
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    <ExtensionAttribute>
    Public Shared Function ToLogNormalDistribution (
    	uniforms As IEnumerable(Of UniformRandomNumber),
    	Optional power As Double = 2.71828182845905,
    	Optional mean As Double = 0,
    	Optional variance As Double = 1
    ) As IEnumerable(Of LogNormalRandomNumber)

C++
View Source Request Example

    public:
    [ExtensionAttribute]
    static IEnumerable<LogNormalRandomNumber^>^ ToLogNormalDistribution(
    	IEnumerable<UniformRandomNumber^>^ uniforms,
    	double power = 2.71828182845905,
    	double mean = 0,
    	double variance = 1
    )

JavaScript
View Source Request Example

    Gemstone.Numeric.Random.RandomNumberExtensions.ToLogNormalDistribution = function(uniforms, power, mean, variance);

#### Parameters

uniforms IEnumerable UniformRandomNumber
  enumerable of UniformRandomNumber
power Double (Optional)
  Power of the Log Normal distribution
mean Double (Optional)
  Mean of normal distribution
variance Double (Optional)
  Variance of normal distribution

#### Return Value

IEnumerable LogNormalRandomNumber
IEnumerableT

#### Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable UniformRandomNumber. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

## See Also

#### Reference

RandomNumberExtensions Class
Gemstone.Numeric.Random Namespace