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00029 #ifndef EXPONENTIALFIT_H
00030 #define EXPONENTIALFIT_H
00031
00032 #include "Fit.h"
00033
00034 class ExponentialFit : public Fit
00035 {
00036 Q_OBJECT
00037
00038 public:
00039 ExponentialFit(ApplicationWindow *parent, Graph *g, bool expGrowth = false);
00040 ExponentialFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, bool expGrowth = false);
00041 ExponentialFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle,
00042 double start, double end, bool expGrowth = false);
00043 ExponentialFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1, bool expGrowth = false);
00044
00045 double eval(double *par, double x){return par[0]*exp(-par[1]*x) + par[2];};
00046
00047 private:
00048 void init();
00049 void customizeFitResults();
00050 void calculateFitCurveData(double *X, double *Y);
00051
00052 bool is_exp_growth;
00053 };
00054
00055 class TwoExpFit : public Fit
00056 {
00057 Q_OBJECT
00058
00059 public:
00060 TwoExpFit(ApplicationWindow *parent, Graph *g);
00061 TwoExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00062 TwoExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00063 TwoExpFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00064
00065 double eval(double *par, double x){return par[0]*exp(-par[1]*x)+par[2]*exp(-par[3]*x)+par[4];};
00066
00067 private:
00068 void init();
00069 void customizeFitResults();
00070 void calculateFitCurveData(double *X, double *Y);
00071 };
00072
00073 class ThreeExpFit : public Fit
00074 {
00075 Q_OBJECT
00076
00077 public:
00078 ThreeExpFit(ApplicationWindow *parent, Graph *g);
00079 ThreeExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00080 ThreeExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00081 ThreeExpFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00082
00083 double eval(double *par, double x){return par[0]*exp(-x*par[1])+par[2]*exp(-x*par[3])+par[4]*exp(-x*par[5])+par[6];};
00084
00085 private:
00086 void init();
00087 void customizeFitResults();
00088 void calculateFitCurveData(double *X, double *Y);
00089 };
00090 #endif