eelbrain.Var.diff

Var.diff(to_end=None, to_begin=None, name=None)

The differences between consecutive values

Parameters

  • to_end (scalar (optional)) – Append to_end at the end.

  • to_begin (scalar (optional)) – Add to_begin at the beginning.

  • name (str) – Name of the output (default is the current name).

Returns

diff – Difference.

Return type

Var

Examples

>>> v = Var([1, 2, 4])
>>> v.diff()
Var([1, 2])
>>> v.diff(to_begin=-1)
Var([-1, 1, 2])