jacobianAddFreqStretch

Workspace.jacobianAddFreqStretch(self: pyarts.arts._Workspace, jacobian_quantities: pyarts.arts.WorkspaceVariable | pyarts.arts.ArrayOfRetrievalQuantity | None = self.jacobian_quantities, jacobian_agenda: pyarts.arts.WorkspaceVariable | pyarts.arts.Agenda | None = self.jacobian_agenda, f_grid: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.f_grid, df: pyarts.arts.WorkspaceVariable | pyarts.arts.Numeric | None = 100e3, verbosity: pyarts.arts.WorkspaceVariable | pyarts.arts.Verbosity | None = self.verbosity) → None

Includes a frequency fit of stretch type in the Jacobian.

Retrieval of deviations between nominal and actual backend frequencies can be included by this method. The assumption here is that the deviation varies linearly over the frequency range (following ARTS basis function for polynomial order 1).

This method adds one element to the state vector (x).

Author(s): Patrick Eriksson

Parameters:

• jacobian_quantities (ArrayOfRetrievalQuantity, optional) – The retrieval quantities in the Jacobian matrix. See jacobian_quantities, defaults to self.jacobian_quantities [INOUT]

• jacobian_agenda (Agenda, optional) – Pure numerical Jacobian calculations. See jacobian_agenda, defaults to self.jacobian_agenda [INOUT]

• f_grid (Vector, optional) – The frequency grid for monochromatic pencil beam calculations. See f_grid, defaults to self.f_grid [IN]

• df (Numeric, optional) – Size of perturbation to apply. Defaults to 100e3 [IN]

• verbosity (Verbosity) – ARTS verbosity. See verbosity, defaults to self.verbosity [IN]