mrgx.h

Go to the documentation of this file.

// Copyright (C) 2013 - 2026  Metrum Research Group
//
// This file is part of mrgsolve.
//
// mrgsolve is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// mrgsolve is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with mrgsolve.  If not, see <http://www.gnu.org/licenses/>.

 
#ifndef MRGX_H
#define MRGX_H
 
#include "mrgsolv.h"

 
namespace mrgx {

Rcpp::Environment get_envir(const databox& self) {
  return (*(reinterpret_cast<Rcpp::Environment*>(self.envir)));
}

double rnorm(const double mean, const double sd, const double lower, 
             const double upper) {
  double x = 0;
  for(int i=0; i < 50; ++i) {
    x = R::rnorm(mean,sd);
    if(x >= lower && x <= upper) return(x);
  }
  Rcpp::stop("Could not simulate normal variate within specified bounds");
}

double rlognorm(const double mean, const double sd, const double lower, 
                const double upper) {
  double x = 0;
  for(int i=0; i < 50; ++i) {
    x = exp(R::rnorm(mean,sd));
    if(x >= lower && x <= upper) {
      return(x);
    }
  }
  Rcpp::stop("Could not simulate log normal variate within specified bounds");
}

template<typename _T___>
_T___ get(const std::string name, const databox& self) {
  Rcpp::Environment env = get_envir(self);
  return env[name];
}

template<typename _T___>
void assign(const std::string x, const _T___& value, const databox& self) {
  Rcpp::Environment env = get_envir(self);
  env.assign(x, value);
  return;
}

template<typename _T___>
_T___ get(const std::string name) {
  Rcpp::Environment env = Rcpp::Environment::global_env();
  return env[name];
} 

template<typename _T___>
_T___ get(const std::string package, const std::string name) {
  Rcpp::Environment env = Rcpp::Environment::namespace_env(package);
  _T___ ans = env[name];
  return ans;
}

template<typename _T___>
_T___ readRDS(const std::string filename) {
  Rcpp::Function readRDS = get<Rcpp::Function>("base", "readRDS");
  return readRDS(filename);
}

Rcpp::Function mt_fun() {
  // See R/Aaaa.R
  Rcpp::Environment env = Rcpp::Environment::namespace_env("mrgsolve");
  Rcpp::Function ans = env["mrgx_mt_fun"];
  return ans;
}
 
}
 
#endif