eelbrain.pipeline.TTestRel¶

class eelbrain.pipeline.TTestRel(model, c1, c0, tail=0)¶

Related measures t-test

Parameters:

model : str: The model which defines the cells that are used in the test. It is specified in the "x % y" format (like interaction definitions) where x and y are variables in the experiment’s events.
c1 : str | tuple: The experimental condition. If the model is a single factor the condition is a str specifying a value on that factor. If model is composed of several factors the cell is defined as a tuple of str, one value on each of the factors.
c0 : str | tuple: The control condition, defined like c1.
tail : int: Tailedness of the test. 0 for two-tailed (default), 1 for upper tail and -1 for lower tail.

See also

Notes

For a t-test between two epochs, use an EpochCollection epoch and model='epoch'.

Examples

Sample test definitions:

tests = {
    'surprising=expected': TTestRel('surprise', 'surprising', 'expected'),
}