DoubleHavriliakNegami Struct Reference

double-dispersion Havriliak-Negami model More...

#include <dielecmodel.h>

Static Public Attributes
static const int	d_npar = 8
static const std::function< double(double, const std::vector< double > &)>	func_imfreq
static const std::function< void(std::vector< double > &, double, const std::vector< double > &)>	grad_imfreq

Detailed Description

double-dispersion Havriliak-Negami model

Member Data Documentation

func_imfreq

const std::function< double(double, const std::vector< double > &)> DoubleHavriliakNegami::func_imfreq

static

Initial value:

= [](double u, const std::vector<double> &pars)
{
    return 1.0 + (pars[0] - 1.0) / std::pow(1.0 + std::pow(u * pars[3], pars[1]), pars[2]) +
           (pars[4] - 1.0) / std::pow(1.0 + pow(u * pars[7], pars[5]), pars[6]);
}

grad_imfreq

const std::function< void(std::vector< double > &, double, const std::vector< double > &)> DoubleHavriliakNegami::grad_imfreq

static

Initial value:

=
        [](std::vector<double> &grads, double u, const std::vector<double> &pars)
{
    using std::pow;
    using std::log;
    grads[0] = 1.0 / pow(1.0 + pow(u * pars[3], pars[1]), pars[2]);
    grads[1] = (pars[0] - 1.0) * (-pars[2]) / pow(1.0 + pow(u * pars[3], pars[1]), pars[2] + 1) *
               log(u * pars[3]) * pow(u * pars[3], pars[1]);
    grads[2] = (1.0 - pars[0]) * log(1.0 + pow(u * pars[3], pars[1])) /
               pow(1.0 + pow(u * pars[3], pars[1]), pars[2]);
    grads[3] = (pars[0] - 1.0) * (-pars[2]) / pow(1.0 + pow(u * pars[3], pars[1]), pars[2] + 1) *
               pars[1] / pars[3] * pow(u * pars[3], pars[1]);
    grads[4] = 1.0 / pow(1.0 + pow(u * pars[7], pars[5]), pars[6]);
    grads[5] = (pars[4] - 1.0) * (-pars[6]) / pow(1.0 + pow(u * pars[7], pars[5]), pars[6] + 1) *
               log(u * pars[7]) * pow(u * pars[7], pars[5]);
    grads[6] = (1.0 - pars[4]) * log(1.0 + pow(u * pars[7], pars[5])) /
               pow(1.0 + pow(u * pars[7], pars[5]), pars[6]);
    grads[7] = (pars[4] - 1.0) * (-pars[6]) / pow(1.0 + pow(u * pars[7], pars[5]), pars[6] + 1) *
               pars[5] / pars[7] * pow(u * pars[7], pars[5]);
}

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

• dielecmodel.h
• dielecmodel.cpp