Iftach Sadeh / ctools

Commit d9d22559bd7909fa72860fdd9c2d8bdbdd4c9d30

Authored by Jürgen Knödlseder
1 parent 9872a7d1

Allow for CSV or FITS file to store covariance matrix (#1863)

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Showing 3 changed files with 22 additions and 17 deletions
doc/source/users/reference_manual/ctlike.rst
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... ... @@ -48,13 +48,13 @@ the spatial model parameters can be kept fixed during that computation
48 48 ctlike generates an output model XML file that contains the values of the
49 49 best fitting model parameters. For all free parameters, an ``error`` attribute
50 50 is added that provides the statistical uncertainty in the parameter estimate.
51   -In addition, the entire output of the covariance matrix to a separate file in CSV
52   -format can be queried (parameter ``outcovmat``). The parameter order given in the
53   -file header corresponds to the arrangement of the covariance matrix entries.
54 51 If computation of the Test Statistics has been requested for a model component,
55 52 a ``ts`` attribute providing the Test Statistics value is added. The output model
56 53 can be used as an input model for other ctools.
57 54  
  55 +In addition, the covariance matrix can be saved into a file by specifying a
  56 +file name for the ``outcovmat`` parameter. If the file name ends with ``.fits``
  57 +or ``.fit`` a FITS file is written, otherwise a CSV file is written.
58 58  
59 59  
60 60 General parameters
... ... @@ -89,7 +89,7 @@ General parameters
89 89 the maximum likelihood fit.
90 90  
91 91 ``(outcovmat = NONE) [string]``
92   - Output CSV file to store covariance matrix.
  92 + Output FITS or CSV file to store covariance matrix.
93 93  
94 94 ``(stat = POISSON) [string]``
95 95 Fitting statistics (POISSON or GAUSSIAN; only affects binned analysis).
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src/ctlike/ctlike.cpp
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1 1 /***************************************************************************
2 2 * ctlike - Maximum likelihood fitting tool *
3 3 * ----------------------------------------------------------------------- *
4   - * copyright (C) 2010-2016 by Juergen Knoedlseder *
  4 + * copyright (C) 2010-2017 by Juergen Knoedlseder *
5 5 * ----------------------------------------------------------------------- *
6 6 * *
7 7 * This program is free software: you can redistribute it and/or modify *
... ... @@ -321,8 +321,13 @@ void ctlike::run(void)
321 321 /***********************************************************************//**
322 322 * @brief Save results
323 323 *
324   - * This method saves the fit results into a XML file and a CSV file. If
325   - * the filename parameters are "NONE", the files are not saved.
  324 + * This method saves the fit results and the covariance matrix. The fit
  325 + * results are written into a XML file while the covariance matrix is written
  326 + * into either a FITS or a CSV file, depending on the file type extension
  327 + * (an extension of `.fits` or `.fit` produce a FITS file, any other
  328 + * extension produces a CSV file).
  329 + *
  330 + * If the filenames are `NONE` no information is saved.
326 331 ***************************************************************************/
327 332 void ctlike::save(void)
328 333 {
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src/ctlike/ctlike.hpp
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1 1 /***************************************************************************
2 2 * ctlike - Maximum likelihood fitting tool *
3 3 * ----------------------------------------------------------------------- *
4   - * copyright (C) 2010-2016 by Juergen Knoedlseder *
  4 + * copyright (C) 2010-2017 by Juergen Knoedlseder *
5 5 * ----------------------------------------------------------------------- *
6 6 * *
7 7 * This program is free software: you can redistribute it and/or modify *
... ... @@ -68,17 +68,17 @@ protected:
68 68 double reoptimize_lm(void);
69 69  
70 70 // User parameters
71   - bool m_refit; //!< Refitting
72   - GFilename m_outmodel; //!< Source model output XML file name
73   - GFilename m_outcovmat; //!< Covariance matrix output CSV file name
74   - bool m_apply_edisp; //!< Apply energy dispersion?
75   - bool m_fix_spat_for_ts; //!< Fix spatial parameters for TS computation?
76   - GChatter m_chatter; //!< Chattiness
  71 + bool m_refit; //!< Refitting
  72 + GFilename m_outmodel; //!< Source model output XML file name
  73 + GFilename m_outcovmat; //!< Covariance matrix output file name
  74 + bool m_apply_edisp; //!< Apply energy dispersion?
  75 + bool m_fix_spat_for_ts; //!< Fix spatial parameters for TS computation?
  76 + GChatter m_chatter; //!< Chattiness
77 77  
78 78 // Members
79   - int m_max_iter; //!< Maximum number of iterations
80   - int m_max_stall; //!< Maximum number of stalls
81   - double m_logL; //!< Maximum log likelihood
  79 + int m_max_iter; //!< Maximum number of iterations
  80 + int m_max_stall; //!< Maximum number of stalls
  81 + double m_logL; //!< Maximum log likelihood
82 82 };
83 83  
84 84 #endif /* CTLIKE_HPP */
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