Re: Octave C++

[Nicholas Jankowski]

I apologize for not being able to address your question right now, but I'm forwarding the message below to the Octave help list where someone may be able to provide a solution.

On Fri, Oct 27, 2017 at 2:05 AM, <address@hidden> wrote:

Hello, I want to pass to the external function in the *.m-file 4 parameters that I load from an external *.mat-file, you can tell how to do it?


#include <QCoreApplication>
//
#include <iostream>
#include <string>
//
#include <oct.h>
#include <octave.h>
#include <parse.h>
#include <toplev.h>
#include <interpreter.h>
#include <builtin-defun-decls.h>
#include <Cell.h>
#include <Matrix.h>
#include <cmd-edit.h>
#include <cmd-hist.h>
#include <file-ops.h>
#include <file-stat.h>
#include <oct-env.h>
#include <oct-time.h>
#include <quit.h>
#include <comment-list.h>
#include <defaults.h>
#include <dirfns.h>
#include <dynamic-ld.h>
#include <error.h>
#include <input.h>
#include <lex.h>
#include <load-path.h>
#include <oct-hist.h>
#include <oct-map.h>
#include <ov-fcn-handle.h>
#include <ov-usr-fcn.h>
#include <ov-null-mat.h>
#include <toplev.h>
#include <pager.h>
#include <parse.h>
#include <pt-all.h>
#include <pt-eval.h>
#include <symtab.h>
#include <token.h>
#include <unwind-prot.h>
#include <utils.h>
#include <variables.h>

void runscript(const std::string &file)
{
    int parse_status = 0;
    eval_string(file, false, parse_status);
    //eval_string(file, false, parse_status, 0);
}

//------------------------------------------------------------
int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);
    string_vector octave_argv (2);
    octave_argv(0) = "embedded";
    octave_argv(1) = "-q";
    octave::embedded_application app_oct(2, octave_argv.c_str_vec());
    app_oct.execute();
    load_fcn_from_file("Emulate.m", "", "", "", "Emulate", true);
    //source_file("Emulate.m");
    // call the function with an argument
    octave_value_list args;
    args(0) = "data.mat";
    args(1) = "a";
    feval("load", args, 0);
    runscript("load data.mat");
    octave_value trainData = get_top_level_value("trainData", false);
    octave_value trainLabel = get_top_level_value("trainLabel", false);
    octave_value testData = get_top_level_value("testData", false);
    octave_value testLabel = get_top_level_value("testLabel", false);
    octave_value_list in;
    in(0) = trainData;
    in(2) = trainLabel;
    in(3) = testData;
    in(4) = testLabel;
    octave_value_list result = feval("Emulate");
    std::cout << "<= EXIT" << std::endl;
    clean_up_and_exit(0);
    return 0;
}


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