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MQL5 ReferenceStandard LibraryMathematicsStatisticsGamma distributionMathRandomGamma 

MathRandomGamma

Generates a pseudorandom variable distributed according to the law of gamma distribution with the a and b parameters. In case of error it returns NaN.

double  MathRandomGamma(
   const double  a,             // the first parameter of the distribution (shape)
   const double  b,             // the second parameter of the distribution (scale)
   int&          error_code     // variable to store the error code
   );

Generates pseudorandom variables distributed according to the law of gamma distribution with the a and b parameters. In case of error it returns false. Analog of the rgamma() in R.

bool  MathRandomGamma(
   const double  a,              // the first parameter of the distribution (shape)
   const double  b,              // the second parameter of the distribution (scale)
   const int     data_count,     // amount of required data
   double&       result[]        // array with values of pseudorandom variables
   );

Parameters

a

[in]  The first parameter of the distribution (shape).

b

[in]  The second parameter of the distribution (scale).

error_code

[out]  Variable to store the error code.

data_count

[out]  Amount of required data.

result[]

[out]  Array to obtain the values of pseudorandom variables.