Class describing the binned data sets : vectors of x coordinates, y values and optionally error on y values and error on coordinates The dimension of the coordinate is free There are 4 different options:
- only coordinates and values (for binned likelihood fits) : kNoError
- coordinate, values and error on values (for normal least square fits) : kValueError
- coordinate, values, error on values and coordinates (for effective least square fits) : kCoordError
- corrdinate, values, error on coordinates and asymmettric error on valyes : kAsymError
In addition there is the option to construct Bindata copying the data in (using the DataVector class) or using pointer to external data (DataWrapper) class. In general is found to be more efficient to copy the data. In case of really large data sets for limiting memory consumption then the other option can be used Specialized constructor exists for data up to 3 dimensions.
When the data are copying in the number of points can be set later (or re-set) using Initialize and the data are inserted one by one using the Add method. It is mandatory to set the size before using the Add method.
Definition at line 61 of file BinData.h.
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| | BinData (unsigned int maxpoints=0, unsigned int dim=1, ErrorType err=kValueError) |
| | constructor from dimension of point and max number of points (to pre-allocate vector) Give a zero value and then use Initialize later one if the size is not known More...
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| | BinData (const DataOptions &opt, unsigned int maxpoints=0, unsigned int dim=1, ErrorType err=kValueError) |
| | constructor from option and default range More...
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| | BinData (const DataOptions &opt, const DataRange &range, unsigned int maxpoints=0, unsigned int dim=1, ErrorType err=kValueError) |
| | constructor from options and range efault is 1D and value errors More...
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| | BinData (unsigned int n, const double *dataX, const double *val, const double *ex, const double *eval) |
| | constructurs using external data More...
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| | BinData (unsigned int n, const double *dataX, const double *dataY, const double *val, const double *ex, const double *ey, const double *eval) |
| | constructor from external data for 2D with errors on coordinate and value More...
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| | BinData (unsigned int n, const double *dataX, const double *dataY, const double *dataZ, const double *val, const double *ex, const double *ey, const double *ez, const double *eval) |
| | constructor from external data for 3D with errors on coordinate and value More...
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| | BinData (const BinData &) |
| | copy constructors More...
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| virtual | ~BinData () |
| | destructor More...
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| void | Add (double x, double y) |
| | add one dim data with only coordinate and values More...
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| void | Add (double x, double y, double ey) |
| | add one dim data with no error in the coordinate (x) in this case store the inverse of the error in the value (y) More...
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| void | Add (double x, double y, double ex, double ey) |
| | add one dim data with error in the coordinate (x) in this case store the value (y) error and not the inverse More...
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| void | Add (double x, double y, double ex, double eyl, double eyh) |
| | add one dim data with error in the coordinate (x) and asymmetric errors in the value (y) in this case store the y errors and not the inverse More...
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| void | Add (const double *x, double val) |
| | add multi-dim coordinate data with only value (no errors) More...
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| void | Add (const double *x, double val, double eval) |
| | add multi-dim coordinate data with only error in value More...
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| void | Add (const double *x, double val, const double *ex, double eval) |
| | add multi-dim coordinate data with both error in coordinates and value More...
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| void | Add (const double *x, double val, const double *ex, double elval, double ehval) |
| | add multi-dim coordinate data with both error in coordinates and value More...
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| void | AddBinUpEdge (const double *xup) |
| | add the bin width data, a pointer to an array with the bin upper edge information. More...
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| const double * | BinUpEdge (unsigned int icoord) const |
| | return an array containing the upper edge of the bin for coordinate i In case of empty bin they could be merged in a single larger bin Return a NULL pointer if the bin width is not stored More...
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| const double * | CoordErrors (unsigned int ipoint) const |
| | Return a pointer to the errors in the coordinates for the given fit point. More...
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| const double * | Coords (unsigned int ipoint) const |
| | return a pointer to the coordinates data for the given fit point More...
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| unsigned int | DataSize () const |
| | return the size of internal data (number of fit points) if data are not copied in but used externally the size is 0 More...
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| double | Error (unsigned int ipoint) const |
| | return error on the value for the given fit point Safe (but slower) method returning correctly the error on the value in case of asymm errors return the average 0.5(eu + el) More...
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| ErrorType | GetErrorType () const |
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| const double * | GetPoint (unsigned int ipoint, double &value) const |
| | retrieve at the same time a pointer to the coordinate data and the fit value More efficient than calling Coords(i) and Value(i) More...
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| const double * | GetPoint (unsigned int ipoint, double &value, double &invError) const |
| | retrieve in a single call a pointer to the coordinate data, value and inverse error for the given fit point. More...
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| const double * | GetPointError (unsigned int ipoint, double &errvalue) const |
| | Retrieve the errors on the point (coordinate and value) for the given fit point It must be called only when the coordinate errors are stored otherwise it will produce an assert. More...
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| const double * | GetPointError (unsigned int ipoint, double &errlow, double &errhigh) const |
| | Get errors on the point (coordinate errors and asymmetric value errors) for the given fit point. More...
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| bool | HasBinEdges () const |
| | query if the data store the bin edges instead of the center More...
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| bool | HaveAsymErrors () const |
| | flag to control if data provides asymmetric errors on the value More...
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| bool | HaveCoordErrors () const |
| | flag to control if data provides error on the coordinates More...
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| void | Initialize (unsigned int maxpoints, unsigned int dim=1, ErrorType err=kValueError) |
| | preallocate a data set with given size , dimension and error type (to get the full point size) If the data set already exists and it is having the compatible point size space for the new points is created in the data sets, while if not compatible the old data are erased and new space of new size is allocated. More...
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| double | InvError (unsigned int ipoint) const |
| | Return the inverse of error on the value for the given fit point useful when error in the coordinates are not stored and then this is used directly this as the weight in the least square function. More...
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| BinData & | LogTransform () |
| | apply a Log transformation of the data values can be used for example when fitting an exponential or gaussian Transform the data in place need to copy if want to preserve original data The data sets must not contain negative values. More...
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| unsigned int | NDim () const |
| | return coordinate data dimension More...
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| unsigned int | NPoints () const |
| | return number of fit points More...
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| BinData & | operator= (const BinData &) |
| | assignment operator More...
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| unsigned int | PointSize () const |
| | return the size of a fit point (is the coordinate dimension + 1 for the value and eventually the number of all errors More...
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| double | RefVolume () const |
| | retrieve the reference volume used to normalize the data when the option bin volume is set More...
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| void | Resize (unsigned int npoints) |
| | resize the vector to the new given npoints if vector does not exists is created using existing point size More...
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| void | SetRefVolume (double value) |
| | set the reference volume used to normalize the data when the option bin volume is set More...
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| unsigned int | Size () const |
| | return number of fit points More...
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| double | SumOfContent () const |
| | compute the total sum of the data content (sum of weights in cse of weighted data set) More...
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| double | SumOfError2 () const |
| | compute the total sum of the error square (sum of weight square in case of a weighted data set) More...
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| double | Value (unsigned int ipoint) const |
| | return the value for the given fit point More...
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| | FitData () |
| | construct with default option and data range More...
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| | FitData (const DataOptions &opt) |
| | construct passing options and default data range More...
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| | FitData (const DataRange &range) |
| | construct passing range and default options More...
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| | FitData (const DataOptions &opt, const DataRange &range) |
| | construct passing options and data range More...
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| virtual | ~FitData () |
| | dummy virtual destructor More...
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| const DataOptions & | Opt () const |
| | access to options More...
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| DataOptions & | Opt () |
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| const DataRange & | Range () const |
| | access to range More...
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Public Member Functions inherited from ROOT::Fit::FitData
ROOT 6.07/09 - Reference Guide Generated on Wed Oct 19 2016 02:28:27 using Doxygen 1.8.12.
