absorption_xsec_fit_data
========================

.. currentmodule:: pyarts3.workspace

.. attribute:: Workspace.absorption_xsec_fit_data
   :type: ~pyarts3.arts.ArrayOfXsecRecord
   
   Fitting model coefficients for cross section species.
   
   Dimensions: [ n_species ]
   
   XsecRecord:
   
   - species: Name of species
   - version: Fit model version
   - fitcoeffs:
   
     -  Fit model coefficients as an :class:`~pyarts3.arts.ArrayOfGriddedField2`
     -  Dimensions: [ n_bands ]
   
       -   GriddedField2: [ n_band_frequencies, n_coeffs ]
   
         -    The fit model:
   
           -     z = p00 + p10*x + p01*y + p20*x^2
           -     z = Xsec [m^2]
           -     x = T / T0
           -     y = P / P0
           -     T0 = 1 [K]
           -     P0 = 1 [Pa]
           -     fitcoeffs(:, 0)           p00  [m^2]
           -     fitcoeffs(:, 1)           p10  [m^2]
           -     fitcoeffs(:, 2)           p01  [m^2]
           -     fitcoeffs(:, 3)           p20  [m^2]
   
   - fitminpressures:
   
     -  Minimum pressure available in source xsec data to generate the fit coefficients.
     -  Dimensions: [ n_bands ]
   
   - fitmaxpressures:
   
     -  Maximum pressure available in source xsec data to generate the fit coefficients.
     -  Dimensions: [ n_bands ]
   
   - fitmintemperatures:
   
     -  Minimum temperature available in source xsec data to generate the fit coefficients.
     -  Dimensions: [ n_bands ]
   
   - fitmintemperatures:
   
     -  Maximum temperature available in source xsec data to generate the fit coefficients.
     -  Dimensions: [ n_bands ]
   
   fitminpressures, fitmaxpressures, fitmintemperatures and fitmaxtemperatures
   are not used to apply the model and solely serve for informational purposes.
   
   
   
   
   .. rubric:: Input to workspace methods
   
   .. hlist::
       :columns: 1
   
       * :func:`~pyarts3.workspace.Workspace.atmospheric_fieldAppendXsecSpeciesData` 
       * :func:`~pyarts3.workspace.Workspace.propagation_matrixAddXsecFit` 
       * :func:`~pyarts3.workspace.Workspace.select_species_listCollectAbsorption`
   
   
   .. rubric:: Output from workspace methods
   
   .. hlist::
       :columns: 1
   
       * :func:`~pyarts3.workspace.Workspace.ReadCatalogData` 
       * :func:`~pyarts3.workspace.Workspace.absorption_xsec_fit_dataReadSpeciesSplitCatalog`
   
   
   .. rubric:: Related workspace variables
   
   .. hlist::
       :columns: 2
   
       * :attr:`~pyarts3.workspace.Workspace.absorption_bands` 
       * :attr:`~pyarts3.workspace.Workspace.absorption_cia_data` 
       * :attr:`~pyarts3.workspace.Workspace.absorption_lookup_table` 
       * :attr:`~pyarts3.workspace.Workspace.absorption_predefined_model_data` 
       * :attr:`~pyarts3.workspace.Workspace.absorption_species` 
       * :attr:`~pyarts3.workspace.Workspace.absorption_vector_scattering` 
       * :attr:`~pyarts3.workspace.Workspace.ray_path_absorption_vector_scattering`
   
   .. :class:`~pyarts3.arts.ArrayOfXsecRecord`