expyriment.design.permute

The permute module.

This module implements permutation of blocks, trials and conditions.

Attributes

expyriment.design.permute.P_BALANCED_LATIN_SQUARE

default value: ‘balanced’

expyriment.design.permute.P_CYCLED_LATIN_SQUARE

default value: ‘cycled’

expyriment.design.permute.P_RANDOM

default value: ‘random’

Functions

expyriment.design.permute.is_permutation_type(type_str)

Return true if the string or value is a know permutation type.

Parameters:

type_strstring

permutation type string

expyriment.design.permute.latin_square(elements, permutation_type='random')

A latin square permutation of elements.

If elements is an integer the elements=[0,…, elements] is used.

Parameters:

elementsint or list

list of elements or a number

permutation_typestr (default=’random’)

type of permutation (permutation type); ‘random’, ‘cycled’ or ‘balanced’ permutation types defined in misc.constants and design.permute: P_BALANCED_LATIN_SQUARE, P_CYCLED_LATIN_SQUARE and P_RANDOM

Returns:

permutationslist of list

Notes

see “Bradley, J. V. Complete counterbalancing of immediate sequential effects in a Latin square design. J. Amer. Statist. Ass.,.1958, 53, 525-528. “