QtiPlot
0.9.8.2
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#include <PolynomialFit.h>
Public Member Functions | |
virtual double | eval (double *par, double x) |
Calculates the data for the output fit curve. | |
void | fit () |
Actually does the fit. Should be reimplemented in derived classes. | |
virtual QString | legendInfo () |
Output string added to the plot as a new legend. | |
int | order () |
PolynomialFit (ApplicationWindow *parent, QwtPlotCurve *c, int order=2, bool legend=false) | |
PolynomialFit (ApplicationWindow *parent, QwtPlotCurve *c, double start, double end, int order=2, bool legend=false) | |
PolynomialFit (ApplicationWindow *parent, Graph *g, int order=2, bool legend=false) | |
PolynomialFit (ApplicationWindow *parent, Graph *g, QString &curveTitle, int order=2, bool legend=false) | |
PolynomialFit (ApplicationWindow *parent, Graph *g, QString &curveTitle, double start, double end, int order=2, bool legend=false) | |
PolynomialFit (ApplicationWindow *parent, Table *t, const QString &xCol, const QString &yCol, int startRow=1, int endRow=-1, int order=2, bool legend=false) | |
void | setOrder (int order) |
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double | adjustedRSquare () |
Returns adjusted R^2. | |
double | chiSquare () |
Returns the sum of squares of the residuals from the best-fit line. | |
Matrix * | covarianceMatrix (const QString &matrixName) |
double * | errors () |
Returns a vector with the standard deviations of the results. | |
QString | fileName () |
Fit (ApplicationWindow *parent, QwtPlotCurve *c) | |
Fit (ApplicationWindow *parent, Graph *g=0, const QString &name=QString()) | |
Fit (ApplicationWindow *parent, Table *t, const QString &name=QString()) | |
QString | formula () |
void | generateFunction (bool yes, int points=100) |
Specifies weather the result of the fit is a function curve. | |
virtual void | guessInitialValues () |
double | initialGuess (int parIndex) |
double | lcl (int parIndex, double confidenceLevel) |
Lower Confidence Limit. | |
bool | load (const QString &fileName) |
int | numParameters () |
QStringList | parameterNames () |
Table * | parametersTable (const QString &tableName) |
double * | residuals () |
Returns a vector with the fit residuals. | |
QString | resultFormula () |
double * | results () |
Returns a vector with the fit results. | |
double | rmse () |
Returns the Root Mean Squared Error. | |
double | rSquare () |
Returns R^2. | |
double | rss () |
Returns the Residual Sum of Squares. | |
virtual bool | run () |
Actually does the job. Should be reimplemented in derived classes. | |
bool | save (const QString &fileName) |
void | scaleErrors (bool yes=true) |
Specifies wheather the errors must be scaled with sqrt(chi_2/dof) | |
void | setAlgorithm (Algorithm s) |
void | setDataCurve (QwtPlotCurve *curve, double start, double end) |
bool | setDataFromTable (Table *t, const QString &xColName, const QString &yColName, int from=1, int to=-1, bool sort=false) |
void | setFileName (const QString &fn) |
virtual bool | setFormula (const QString &, bool=true) |
void | setInitialGuess (int parIndex, double val) |
void | setInitialGuesses (double *x_init) |
void | setParameterExplanations (const QStringList &lst) |
void | setParameterRange (int parIndex, double left, double right) |
virtual bool | setParametersList (const QStringList &) |
void | setType (FitType t) |
bool | setWeightingData (WeightingMethod w, const QString &colName=QString::null) |
Sets the data set to be used for weighting. | |
void | showConfidenceLimits (double confidenceLevel) |
void | showPredictionLimits (double confidenceLevel) |
QwtPlotCurve * | showResiduals () |
Plot residuals and display data values in a column. | |
FitType | type () |
double | ucl (int parIndex, double confidenceLevel) |
Upper Confidence Limit. | |
void | writeParametersToTable (Table *t, bool append=false) |
~Fit () | |
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int | dataSize () |
Returns the size of the input data set. | |
virtual void | enableGraphicsDisplay (bool on=true, Graph *g=0) |
bool | error () |
Filter (ApplicationWindow *parent, Table *t=0, const QString &name=QString()) | |
Filter (ApplicationWindow *parent, Graph *g=0, const QString &name=QString()) | |
Filter (ApplicationWindow *parent, Matrix *m, const QString &name=QString()) | |
Filter (ApplicationWindow *parent, QwtPlotCurve *c) | |
Graph * | outputGraph () |
Returns a pointer to the graph where the result curve should be displayed. | |
Table * | resultTable () |
Returns a pointer to the table created to display the results. | |
void | setColor (int colorId) |
Obsolete: sets the color of the output fit curve. | |
void | setColor (const QColor &color) |
Sets the color of the output fit curve. | |
void | setColor (const QString &colorName) |
Sets the color of the output fit curve. Provided for convenience. To be used in scripts only! | |
bool | setDataFromCurve (QwtPlotCurve *c) |
bool | setDataFromCurve (QwtPlotCurve *c, double from, double to) |
bool | setDataFromCurve (const QString &curveTitle, Graph *g=0) |
bool | setDataFromCurve (const QString &curveTitle, double from, double to, Graph *g=0) |
void | setError (bool on=true) |
void | setInterval (double from, double to) |
Changes the data range if the source curve was already assigned. Provided for convenience. | |
void | setMaximumIterations (int iter) |
Sets the maximum number of iterations to be performed during an iterative session. | |
void | setOutputPoints (int points) |
Sets the number of points in the output curve. | |
void | setOutputPrecision (int digits) |
Sets the precision used for the output. | |
void | setSortData (bool on=true) |
void | setTolerance (double eps) |
Sets the tolerance used by the GSL routines. | |
void | setUpdateOutputGraph (bool update=true) |
virtual void | showLegend () |
Adds a new legend to the plot. Calls virtual legendInfo() | |
double * | x () |
Returns the x values of the input data set. | |
double * | y () |
Returns the y values of the input data set. | |
~Filter () |
Static Public Member Functions | |
static QString | generateFormula (int order) |
static QStringList | generateParameterList (int order) |
Private Member Functions | |
void | calculateFitCurveData (double *X, double *Y) |
void | init () |
Private Attributes | |
int | d_order |
bool | show_legend |
Additional Inherited Members | |
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enum | Algorithm { ScaledLevenbergMarquardt, UnscaledLevenbergMarquardt, NelderMeadSimplex } |
typedef int(* | fit_function )(const gsl_vector *, void *, gsl_vector *) |
typedef int(* | fit_function_df )(const gsl_vector *, void *, gsl_matrix *) |
typedef int(* | fit_function_fdf )(const gsl_vector *, void *, gsl_vector *, gsl_matrix *) |
typedef double(* | fit_function_simplex )(const gsl_vector *, void *) |
enum | FitType { BuiltIn = 0, Plugin = 1, User = 2 } |
enum | WeightingMethod { NoWeighting, Instrumental, Statistical, Dataset, Direct } |
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virtual void | calculateFitCurveData (double *X, double *Y) |
Calculates the data for the output fit curve and store itin the X an Y vectors. | |
virtual void | freeMemory () |
Frees all the arrays with size d_n. Used when changing the source data sets. | |
void | freeWorkspace () |
Frees the memory allocated for the fit workspace. | |
virtual void | generateFitCurve () |
Adds the result curve to the plot. | |
void | initWorkspace (int par) |
Allocates the memory for the fit workspace. | |
virtual FunctionCurve * | insertFitFunctionCurve (const QString &name, int penWidth=1, bool updateData=true) |
Adds the result curve as a FunctionCurve to the plot, if d_gen_function = true. | |
virtual QString | logFitInfo (int iterations, int status) |
Output string added to the result log. | |
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double | chi_2 |
The sum of squares of the residuals from the best-fit line. | |
gsl_matrix * | covar |
Covariance matrix. | |
double | d_adjusted_r_square |
Adjusted R^2. | |
Matrix * | d_cov_matrix |
Matrix window used for the output of covariance matrix. | |
fit_function_df | d_df |
double * | d_errors |
Stores standard deviations of the result parameters. | |
fit_function | d_f |
fit_function_fdf | d_fdf |
QString | d_file_name |
Path of the XML file where the user stores the fit model. | |
FitType | d_fit_type |
QString | d_formula |
The fit formula given on input. | |
fit_function_simplex | d_fsimplex |
bool | d_gen_function |
Specifies weather the result curve is a FunctionCurve or a normal curve with the same x values as the fit data. | |
int | d_p |
Number of fit parameters. | |
QStringList | d_param_explain |
Stores a list of short explanations for the significance of the fit parameters. | |
gsl_vector * | d_param_init |
Initial guesses for the fit parameters. | |
QStringList | d_param_names |
Names of the fit parameters. | |
double * | d_param_range_left |
Stores the left limits of the research interval for the result parameters. | |
double * | d_param_range_right |
Stores the right limits of the research interval for the result parameters. | |
QPointer< Table > | d_param_table |
Table window used for the output of fit parameters. | |
double * | d_residuals |
Stores fit residuals. | |
QString | d_result_formula |
The result fit formula, where the fit parameters are replaced with the calculated values. | |
double * | d_results |
Stores the result parameters. | |
double | d_rss |
Residual sum of squares. | |
bool | d_scale_errors |
Specifies wheather the errors must be scaled with sqrt(chi_2/dof) | |
Algorithm | d_solver |
Algorithm type. | |
double * | d_w |
weighting data set used for the fit | |
WeightingMethod | d_weighting |
The kind of weighting to be performed on the data. | |
bool | is_non_linear |
Tells whether the fitter uses non-linear/simplex fitting with an initial parameters set, that must be freed in the destructor. | |
QString | weighting_dataset |
The name of the weighting dataset. |
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
QwtPlotCurve * | c, | ||
int | order = 2 , |
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bool | legend = false |
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References init(), and Filter::setDataFromCurve().
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
QwtPlotCurve * | c, | ||
double | start, | ||
double | end, | ||
int | order = 2 , |
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bool | legend = false |
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References init(), and Filter::setDataFromCurve().
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
Graph * | g, | ||
int | order = 2 , |
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bool | legend = false |
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References init().
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
Graph * | g, | ||
QString & | curveTitle, | ||
int | order = 2 , |
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bool | legend = false |
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References init(), and Filter::setDataFromCurve().
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
Graph * | g, | ||
QString & | curveTitle, | ||
double | start, | ||
double | end, | ||
int | order = 2 , |
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bool | legend = false |
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References init(), and Filter::setDataFromCurve().
PolynomialFit::PolynomialFit | ( | ApplicationWindow * | parent, |
Table * | t, | ||
const QString & | xCol, | ||
const QString & | yCol, | ||
int | startRow = 1 , |
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int | endRow = -1 , |
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int | order = 2 , |
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bool | legend = false |
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References init(), and Fit::setDataFromTable().
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private |
References Fit::d_gen_function, Filter::d_n, Fit::d_p, Filter::d_points, Fit::d_results, Filter::d_x, and Filter::x().
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virtual |
Calculates the data for the output fit curve.
Reimplemented from Fit.
References Fit::d_p, and Filter::y().
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virtual |
Actually does the fit. Should be reimplemented in derived classes.
Reimplemented from Fit.
References Fit::chi_2, Fit::covar, Filter::d_init_err, Filter::d_n, Fit::d_p, Fit::d_param_init, Fit::d_results, Fit::d_w, Fit::d_weighting, Filter::d_x, Filter::d_y, Fit::generateFitCurve(), Fit::logFitInfo(), Fit::NoWeighting, show_legend, Filter::showLegend(), ApplicationWindow::updateLog(), ApplicationWindow::writeFitResultsToLog, and Filter::y().
Referenced by PolynomFitDialog::fit().
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static |
References Fit::formula().
Referenced by setOrder().
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static |
Referenced by setOrder().
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private |
References Filter::d_explanation, d_order, Fit::d_scale_errors, Fit::is_non_linear, and setOrder().
Referenced by PolynomialFit().
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virtual |
Output string added to the plot as a new legend.
Reimplemented from Fit.
References Fit::d_p, Filter::d_prec, and Fit::d_results.
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inline |
References d_order.
Referenced by setOrder().
void PolynomialFit::setOrder | ( | int | order | ) |
References Fit::d_formula, d_order, Fit::d_p, Fit::d_param_explain, Fit::d_param_names, Fit::freeWorkspace(), generateFormula(), generateParameterList(), Fit::initWorkspace(), and order().
Referenced by init().
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private |
Referenced by init(), order(), and setOrder().
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private |
Referenced by fit().