mne.make_forward_solution(info, trans, src, bem, fname=None, meg=True, eeg=True, mindist=0.0, ignore_ref=False, overwrite=False, n_jobs=1, verbose=None)

Calculate a forward solution for a subject


info : instance of | str

If str, then it should be a filename to a Raw, Epochs, or Evoked file with measurement information. If dict, should be an info dict (such as one from Raw, Epochs, or Evoked).

trans : dict | str | None

Either a transformation filename (usually made using mne_analyze) or an info dict (usually opened using read_trans()). If string, an ending of .fif or .fif.gz will be assumed to be in FIF format, any other ending will be assumed to be a text file with a 4x4 transformation matrix (like the –trans MNE-C option). Can be None to use the identity transform.

src : str | instance of SourceSpaces

If string, should be a source space filename. Can also be an instance of loaded or generated SourceSpaces.

bem : dict | str

Filename of the BEM (e.g., “sample-5120-5120-5120-bem-sol.fif”) to use, or a loaded sphere model (dict).

fname : str | None

Destination forward solution filename. If None, the solution will not be saved.

meg : bool

If True (Default), include MEG computations.

eeg : bool

If True (Default), include EEG computations.

mindist : float

Minimum distance of sources from inner skull surface (in mm).

ignore_ref : bool

If True, do not include reference channels in compensation. This option should be True for KIT files, since forward computation with reference channels is not currently supported.

overwrite : bool

If True, the destination file (if it exists) will be overwritten. If False (default), an error will be raised if the file exists.

n_jobs : int

Number of jobs to run in parallel.

verbose : bool, str, int, or None

If not None, override default verbose level (see mne.verbose).


fwd : instance of Forward

The forward solution.


Some of the forward solution calculation options from the C code (e.g., –grad, –fixed) are not implemented here. For those, consider using the C command line tools or the Python wrapper do_forward_solution.