PolynomialFit.h

Go to the documentation of this file.
00001 /***************************************************************************
00002     File                 : PolynomialFit.h
00003     Project              : QtiPlot
00004     --------------------------------------------------------------------
00005     Copyright            : (C) 2006 by Ion Vasilief
00006     Email (use @ for *)  : ion_vasilief*yahoo.fr
00007     Description          : Polynomial Fit and Linear Fit classes
00008 
00009  ***************************************************************************/
00010 
00011 /***************************************************************************
00012  *                                                                         *
00013  *  This program is free software; you can redistribute it and/or modify   *
00014  *  it under the terms of the GNU General Public License as published by   *
00015  *  the Free Software Foundation; either version 2 of the License, or      *
00016  *  (at your option) any later version.                                    *
00017  *                                                                         *
00018  *  This program is distributed in the hope that it will be useful,        *
00019  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
00020  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
00021  *  GNU General Public License for more details.                           *
00022  *                                                                         *
00023  *   You should have received a copy of the GNU General Public License     *
00024  *   along with this program; if not, write to the Free Software           *
00025  *   Foundation, Inc., 51 Franklin Street, Fifth Floor,                    *
00026  *   Boston, MA  02110-1301  USA                                           *
00027  *                                                                         *
00028  ***************************************************************************/
00029 #ifndef POLYNOMIALFIT_H
00030 #define POLYNOMIALFIT_H
00031 
00032 #include "Fit.h"
00033 
00034 class PolynomialFit : public Fit
00035 {
00036     Q_OBJECT
00037 
00038     public:
00039         PolynomialFit(ApplicationWindow *parent, Graph *g, int order = 2, bool legend = false);
00040         PolynomialFit(ApplicationWindow *parent, Graph *g, QString& curveTitle, int order = 2, bool legend = false);
00041         PolynomialFit(ApplicationWindow *parent, Graph *g, QString& curveTitle, double start, double end, int order = 2, bool legend = false);
00042         PolynomialFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1, int order = 2, bool legend = false);
00043 
00044         virtual QString legendInfo();
00045         void fit();
00046 
00047         int order(){return d_order;};
00048         void setOrder(int order);
00049 
00050         static QString generateFormula(int order);
00051         static QStringList generateParameterList(int order);
00052 
00053         virtual double eval(double *par, double x);
00054 
00055     private:
00056         void init();
00057         void calculateFitCurveData(double *X, double *Y);
00058 
00059         int d_order;
00060         bool show_legend;
00061 };
00062 
00063 class LinearFit : public Fit
00064 {
00065     Q_OBJECT
00066 
00067     public:
00068         LinearFit(ApplicationWindow *parent, Graph *g);
00069         LinearFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00070         LinearFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00071         LinearFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00072 
00073         void fit();
00074         virtual double eval(double *par, double x){return par[0] + par[1]*x;};
00075 
00076     private:
00077         void init();
00078         void calculateFitCurveData(double *X, double *Y);
00079 };
00080 
00081 class LinearSlopeFit : public Fit
00082 {
00083     Q_OBJECT
00084 
00085     public:
00086         LinearSlopeFit(ApplicationWindow *parent, Graph *g);
00087         LinearSlopeFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00088         LinearSlopeFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00089         LinearSlopeFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00090 
00091         void fit();
00092         virtual double eval(double *par, double x){return par[0]*x;};
00093 
00094     private:
00095         void init();
00096         void calculateFitCurveData(double *X, double *Y);
00097 };
00098 #endif

Generated on Tue Jun 17 08:36:11 2008 for QtiPlot by  doxygen 1.5.5