This documentation is for development version 0.18.dev0.

# mne.transforms.Transform¶

class mne.transforms.Transform(fro, to, trans=None)[source]

A transform.

Parameters: fro : str | int The starting coordinate frame. to : str | int The ending coordinate frame. trans : array-like, shape (4, 4) | None The transformation matrix. If None, an identity matrix will be used. from_str The “from” frame as a string. to_str The “to” frame as a string.

Methods

 __contains__($self, key, /) True if the dictionary has the specified key, else False. __getitem__ x.__getitem__(y) <==> x[y] __iter__($self, /) Implement iter(self). __len__($self, /) Return len(self). clear() copy() Make a copy of the transform. fromkeys($type, iterable[, value]) Create a new dictionary with keys from iterable and values set to value. get($self, key[, default]) Return the value for key if key is in the dictionary, else default. items() keys() pop(k[,d]) If key is not found, d is returned if given, otherwise KeyError is raised popitem() 2-tuple; but raise KeyError if D is empty. save(fname) Save the transform as -trans.fif file. setdefault($self, key[, default]) Insert key with a value of default if key is not in the dictionary. update([E, ]**F) If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k] values()
__contains__($self, key, /) True if the dictionary has the specified key, else False. __getitem__() x.__getitem__(y) <==> x[y] __iter__($self, /)

Implement iter(self).

__len__($self, /) Return len(self). clear() → None. Remove all items from D. copy()[source] Make a copy of the transform. from_str The “from” frame as a string. fromkeys($type, iterable, value=None, /)

Create a new dictionary with keys from iterable and values set to value.

get($self, key, default=None, /) Return the value for key if key is in the dictionary, else default. items() → a set-like object providing a view on D's items keys() → a set-like object providing a view on D's keys pop(k[, d]) → v, remove specified key and return the corresponding value. If key is not found, d is returned if given, otherwise KeyError is raised popitem() → (k, v), remove and return some (key, value) pair as a 2-tuple; but raise KeyError if D is empty. save(fname)[source] Save the transform as -trans.fif file. Parameters: fname : str The name of the file, which should end in ‘-trans.fif’. setdefault($self, key, default=None, /)

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

to_str

The “to” frame as a string.

update([E, ]**F) → None. Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values