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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 bool isExponentialGrowth(){return is_exp_growth;};
00047
00048 private:
00049 void init();
00050 void customizeFitResults();
00051 void calculateFitCurveData(double *X, double *Y);
00052
00053 bool is_exp_growth;
00054 };
00055
00056 class TwoExpFit : public Fit
00057 {
00058 Q_OBJECT
00059
00060 public:
00061 TwoExpFit(ApplicationWindow *parent, Graph *g);
00062 TwoExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00063 TwoExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00064 TwoExpFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00065
00066 double eval(double *par, double x){return par[0]*exp(-par[1]*x)+par[2]*exp(-par[3]*x)+par[4];};
00067
00068 private:
00069 void init();
00070 void customizeFitResults();
00071 void calculateFitCurveData(double *X, double *Y);
00072 };
00073
00074 class ThreeExpFit : public Fit
00075 {
00076 Q_OBJECT
00077
00078 public:
00079 ThreeExpFit(ApplicationWindow *parent, Graph *g);
00080 ThreeExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle);
00081 ThreeExpFit(ApplicationWindow *parent, Graph *g, const QString& curveTitle, double start, double end);
00082 ThreeExpFit(ApplicationWindow *parent, Table *t, const QString& xCol, const QString& yCol, int startRow = 1, int endRow = -1);
00083
00084 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];};
00085
00086 private:
00087 void init();
00088 void customizeFitResults();
00089 void calculateFitCurveData(double *X, double *Y);
00090 };
00091 #endif