Public Member Functions | Friends | List of all members
normal Class Reference

Normal distribution, scaled so that it spans between a specified minimum and maximum value, rather than from zero to infinity. More...

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Public Member Functions

 TypeName ("normal")
 Runtime type information. More...
 
 normal (const unitConversion &units, const dictionary &dict, const label sampleQ, randomGenerator &&rndGen)
 Construct from a dictionary. More...
 
 normal (const label Q, const label sampleQ, randomGenerator &&rndGen, const label n, const scalar min, const scalar max, const scalar mu, const scalar sigma)
 Construct from components. More...
 
 normal (const normal &d, const label sampleQ)
 Construct copy. More...
 
virtual autoPtr< distribution > clone (const label sampleQ) const
 Construct and return a clone. More...
 
virtual ~normal ()
 Destructor. More...
 
virtual scalar sampleForZeroQ () const
 Sample the distribution for zero effective size exponent. More...
 
scalar sampleForZeroQ (const scalar s) const
 Sample the distribution for zero effective size exponent. More...
 
virtual scalar min () const
 Return the minimum value. More...
 
virtual scalar max () const
 Return the maximum value. More...
 
virtual scalar mean () const
 Return the mean value. More...
 
scalar mu () const
 Return the mean value. More...
 
scalar sigma () const
 Return the standard deviation. More...
 
virtual void write (Ostream &os, const unitConversion &units) const
 Write to a stream. More...
 
virtual tmp< scalarField > plotX (const label n) const
 Return coordinates to plot across the range of the distribution. More...
 
- Public Member Functions inherited from FieldDistribution< unintegrableForNonZeroQ, normal >
Type sample () const
 Sample the distribution into components of a primitive type. More...
 
virtual tmp< scalarField > sample (const label n) const
 Sample the distribution into a field. More...
 

Friends

class multiNormal
 Permit the multiNormal distribution to use private parts of this class. More...
 

Additional Inherited Members

- Protected Member Functions inherited from FieldDistribution< unintegrableForNonZeroQ, normal >
 FOR_ALL_FIELD_TYPES (VIRTUAL_SAMPLE_TYPE)
 

Detailed Description

Normal distribution, scaled so that it spans between a specified minimum and maximum value, rather than from zero to infinity.

\[ PDF(x) = \frac{1}{\sigma \sqrt{2 \pi}} \exp \left( - \frac{1}{2} \left( \frac{x - \mu}{\sigma} \right)^2 \right) \]

Usage
Example usage: 
{
    type    normal;
    Q       0;
    min     0.001;
    max     0.019;
    mu      0.011;
    sigma   0.003;
}
Source files
See also
Foam::distribution

Definition at line 71 of file normal.H.

Constructor & Destructor Documentation

◆ normal() [1/3]

normal ( const unitConversion &  units,
const dictionary &  dict,
const label  sampleQ,
randomGenerator &&  rndGen 
)

Construct from a dictionary.

Definition at line 71 of file normal.C.

Referenced by normal::clone().

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◆ normal() [2/3]

normal ( const label  Q,
const label  sampleQ,
randomGenerator &&  rndGen,
const label  n,
const scalar  min,
const scalar  max,
const scalar  mu,
const scalar  sigma 
)

Construct from components.

Definition at line 98 of file normal.C.

◆ normal() [3/3]

normal ( const normal &  d,
const label  sampleQ 
)

Construct copy.

Definition at line 124 of file normal.C.

◆ ~normal()

~normal ( )
virtual

Destructor.

Definition at line 136 of file normal.C.

Member Function Documentation

◆ TypeName()

TypeName ( "normal"  )

Runtime type information.

◆ clone()

virtual autoPtr<distribution> clone ( const label  sampleQ) const
inlinevirtual

Construct and return a clone.

Definition at line 143 of file normal.H.

References normal::normal().

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◆ sampleForZeroQ() [1/2]

Foam::scalar sampleForZeroQ ( ) const
virtual

Sample the distribution for zero effective size exponent.

Definition at line 142 of file normal.C.

◆ sampleForZeroQ() [2/2]

Foam::scalar sampleForZeroQ ( const scalar  s) const

Sample the distribution for zero effective size exponent.

Definition at line 148 of file normal.C.

References standardNormal::approxErfInv(), s(), and Foam::sqrt().

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◆ min()

Foam::scalar min ( ) const
virtual

Return the minimum value.

Definition at line 157 of file normal.C.

◆ max()

Foam::scalar max ( ) const
virtual

Return the maximum value.

Definition at line 163 of file normal.C.

◆ mean()

Foam::scalar mean ( ) const
virtual

Return the mean value.

Definition at line 169 of file normal.C.

References unintegrable::mean().

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◆ mu()

scalar mu ( ) const
inline

Return the mean value.

Definition at line 174 of file normal.H.

◆ sigma()

scalar sigma ( ) const
inline

Return the standard deviation.

Definition at line 180 of file normal.H.

◆ write()

void write ( Ostream &  os,
const unitConversion &  units 
) const
virtual

Write to a stream.

Definition at line 190 of file normal.C.

References Foam::units(), Foam::vtkWriteOps::write(), and Foam::writeEntry().

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◆ plotX()

Foam::tmp< Foam::scalarField > plotX ( const label  n) const
virtual

Return coordinates to plot across the range of the distribution.

Definition at line 206 of file normal.C.

References Foam::max(), n, distribution::plotX(), and tmp< T >::ref().

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Friends And Related Function Documentation

◆ multiNormal

friend class multiNormal
friend

Permit the multiNormal distribution to use private parts of this class.

Definition at line 112 of file normal.H.

The documentation for this class was generated from the following files: