ctlike

Performs binned and unbinned maximum likelihood analysis of CTA data.


Synopsis

Determines source model parameters, such as flux, spectral index, source position, and source extent from a maximum likelihood analysis of CTA data. The analysis can be done in a binned or an unbinned formulation of the log-likelihood function. For binned analysis, a counts map producted by ctbin is required. For unbinned analysis, an events list processed by ctselect is required. Based on the input file format, ctlike automatically selects between binned and unbinned maximum likelihood analysis.


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General parameters

  infile [file]
    Input event list, counts map or observation definition XML file.
     
  (stat = POISSON) [string]
    Fitting statistics (only affects binned analysis).
     
  (refit = no) [boolean]
    Performs refitting of solution after initial fit.
     
  caldb [string]
    Calibration database.
     
  irf [string]
    Instrument response function.
     
  srcmdl [string]
    Source model input XML file.
     
  outmdl [string]
    Source model result XML file.
     

Standard parameters

  (chatter = 2) [integer]
    Verbosity of the executable:
chatter = 0: no information will be logged
chatter = 1: only errors will be logged
chatter = 2: errors and actions will be logged
chatter = 3: report about the task execution
chatter = 4: detailed report about the task execution
     
  (clobber = yes) [boolean]
    Specifies whether an existing source model result file should be overwritten.
     
  (debug = no) [boolean]
    Enables debug mode. In debug mode the executable will dump any log file output in the console.
     
  (mode = ql) [string]
    Mode of automatic parameters.
     

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Last updated by: Jürgen Knödlseder 3 April 2012