Technical facts

Operating system(s) or programming environment(s)

Lubuntu 15.04 (vivid)

IDE(s):

Qt Creator 3.1.1

Project type:

Console application

C++ standard:

C++98

Compiler(s):

G++ 4.9.2

Libraries used:

STL: GNU ISO C++ Library, version 4.9.2

Qt project file: ./CppAlglibExample1/CppAlglibExample1.pro


include(../../ConsoleApplication.pri) #Or use the code below

# QT += core

# QT += gui

# greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

# CONFIG   += console

# CONFIG   -= app_bundle

# TEMPLATE = app

# CONFIG(release, debug|release) {

#   DEFINES += NDEBUG NTRACE_BILDERBIKKEL

# }

# QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Weffc++

# unix {

#   QMAKE_CXXFLAGS += -Werror

# }



include(../../Libraries/Boost.pri) #Or use the code below

# win32 {

#   INCLUDEPATH += \

#     ../../Libraries/boost_1_54_0

# }



SOURCES += main.cpp



#

#

# alglib

#

#



unix {

  message(Lubuntu: alglib not tested)



}



win32 {

  message(Windows: alglib: include path)

  INCLUDEPATH += ../../Libraries/alglib-3.8.0/src



SOURCES += \

    ../../Libraries/alglib-3.8.0/src/statistics.cpp \

    ../../Libraries/alglib-3.8.0/src/specialfunctions.cpp \

    ../../Libraries/alglib-3.8.0/src/solvers.cpp \

    ../../Libraries/alglib-3.8.0/src/optimization.cpp \

    ../../Libraries/alglib-3.8.0/src/linalg.cpp \

    ../../Libraries/alglib-3.8.0/src/interpolation.cpp \

    ../../Libraries/alglib-3.8.0/src/integration.cpp \

    ../../Libraries/alglib-3.8.0/src/fasttransforms.cpp \

    ../../Libraries/alglib-3.8.0/src/diffequations.cpp \

    ../../Libraries/alglib-3.8.0/src/dataanalysis.cpp \

    ../../Libraries/alglib-3.8.0/src/ap.cpp \

    ../../Libraries/alglib-3.8.0/src/alglibmisc.cpp \

    ../../Libraries/alglib-3.8.0/src/alglibinternal.cpp



HEADERS += \

    ../../Libraries/alglib-3.8.0/src/statistics.h \

    ../../Libraries/alglib-3.8.0/src/specialfunctions.h \

    ../../Libraries/alglib-3.8.0/src/solvers.h \

    ../../Libraries/alglib-3.8.0/src/optimization.h \

    ../../Libraries/alglib-3.8.0/src/linalg.h \

    ../../Libraries/alglib-3.8.0/src/interpolation.h \

    ../../Libraries/alglib-3.8.0/src/integration.h \

    ../../Libraries/alglib-3.8.0/src/fasttransforms.h \

    ../../Libraries/alglib-3.8.0/src/diffequations.h \

    ../../Libraries/alglib-3.8.0/src/dataanalysis.h \

    ../../Libraries/alglib-3.8.0/src/ap.h \

    ../../Libraries/alglib-3.8.0/src/alglibmisc.h \

    ../../Libraries/alglib-3.8.0/src/alglibinternal.h

}

./CppAlglibExample1/main.cpp


///Adapted from http://www.alglib.net/translator/man/manual.cpp.html#lsfit_d_lin%20example



#include <cassert>

#include <iostream>

#include "interpolation.h"



int main()

{

  //

  // In this example we demonstrate linear fitting by f(x|a) = a*exp(0.5*x).

  //

  // We have:

  // * y - vector of experimental data

  // * fmatrix -  matrix of basis functions calculated at sample points

  //              Actually, we have only one basis function F0 = exp(0.5*x).

  //

  const alglib::real_2d_array fmatrix = "[[0.606531],[0.670320],[0.740818],[0.818731],[0.904837],[1.000000],[1.105171],[1.221403],[1.349859],[1.491825],[1.648721]]";

  const alglib::real_1d_array y = "[1.133719, 1.306522, 1.504604, 1.554663, 1.884638, 2.072436, 2.257285, 2.534068, 2.622017, 2.897713, 3.219371]";

  alglib::ae_int_t info;

  alglib::real_1d_array c;

  alglib::lsfitreport rep;



  //

  // Linear fitting without weights

  //



  alglib::lsfitlinear(y, fmatrix, info, c, rep);



  assert(info == 1);

  assert(c.tostring(4) == std::string("[1.9865]"));

}

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(C++) AlglibExample1

Technical facts

Qt project file: ./CppAlglibExample1/CppAlglibExample1.pro

./CppAlglibExample1/main.cpp