Estimate parameters for Gamma distribution
int ocmath_para_gamma(int iSize, const double * pData, double alpha, double * pPara, double * pCI = NULL, double * pHessian = NULL, double * pdSE = NULL, const double * pdFixed = NULL)
return 0 on successful exit; if an error or warning has been detected, then it returns the specific error or warning code.
origin.h