def __repeated_prime_form_sampaio(self):
"""Returns Sampaio prime form algorithm for repeated c-pitches
csegs.
Returns all possible prime forms of a cseg with repeated
elements."""
size = len(self)
d_list = []
range_size = range(1, size)
# generates a vector with all internal diagonals of self
[d_list.append(self.internal_diagonals(d)) for d in range_size]
# generates a vector with all possible zero substitutions
lists = utils.zero_to_plus_minus(d_list)
result = []
for lst in lists:
lst = [diagonal.InternalDiagonal(x) for x in lst]
# appends all possible csegs from each diagonal
result.append(diagonal.csegs_from_diagonals(lst))
return sorted([x for x in result if x])
def __one_repeated_prime_form_marvin_laprade(self, signal):
"""Returns one of prime forms of a repeated cpitch cseg
(Marvin and Laprade, 1987)."""
size = len(self)
diagonals_list = []
for d in range(1, size):
# substitutes zeros for a given signal
int_d = self.internal_diagonals(d).zero_to_signal(signal)
diagonals_list.append(diagonal.InternalDiagonal(int_d))
return diagonal.csegs_from_diagonals(diagonals_list)
