Formats of input dictionaries or files

Some information can be provided as a dictionary or as an input file. The formats are described here.

Components

The information for the components is given with a dictionary, which can have one of the following format :

• if you don’t have too many species, you can provide all the information directly in the dictionary ; it should be a dictionary of dictionaries:

  {
  'c1': {
      'size': parameter_infos(min=1., max=50., value=30.0, vary=True),
      'tex': parameter_infos(min=10., max=300., value=100., vary=True),
      'vlsr': parameter_infos(min=0., max=10.0, value=4.0, vary=True),
      'fwhm': parameter_infos(min=1.0, max=15.0, value=3., vary=True)
      'interacting': True,
      'species': [
         {'tag': 41505,
          'ntot': parameter_infos(min=0.001, max=1000., value=2.e16, factor=True),
          },
         {'tag': 28502,
          'ntot': parameter_infos(min=0.001, max=1000., value=2.e15, factor=True),
          },
          ]
      },
  'c2': {...}
  }
  

Thresholds

In all cases, you can provide information on more species than needed, the program will only look for the species given by the user via the keyword inspect or components.

• As a dictionary, species by species:

  thresholds = {
      28501: {'eup_max': 150},
      28502: {'eup_max': 250, 'aij_min': 1.e-4}
  }
  

• As a dictionary, for all species:

  thresholds = {
      '*': {'eup_max': 150, 'aij_min': 1.e-4}
  }
  

• As a file: coming soon

Velocity ranges

# File giving the velocity ranges over which to compute chi2
# Format : 
#
# tag
# vmin <tab> vmax <tab> list of transitions numbers 
# <blank line>
#
# N.B. : transition numbers are as given by CASSIS, ordered by frequency, with the same thresholds
#

41505
0.5	5.5	2,4,7,9
-5.5	5.5	5,10

28502
1.0	5.0	3