galpy.df.streamdf.__call__

streamdf.__call__(*args, **kwargs)[source]

Evaluate the distribution function (DF).

Parameters:

  • *args (tuple) –

    Either:

    1. R,vR,vT,z,vz,phi ndarray [nobjects]

    2. (Omegar,Omegaphi,Omegaz,angler,anglephi,anglez) tuple if aAInput where:

      • Omegar - radial frequency

      • Omegaphi - azimuthal frequency

      • Omegaz - vertical frequency

      • angler - radial angle

      • anglephi - azimuthal angle

      • anglez - vertical angle

    1. Orbit instance or list thereof

  • log (bool, optional) – If True, return the natural log. Default is True.

  • aaInput (bool, optional) – If True, option b above. Default is False.

Returns:

Value of DF.

Return type:

ndarray

Notes

  • 2013-12-03 - Written - Bovy (IAS)