我想要做的是获得所有组合和每个组合的所有独特排列。与替换功能的组合只让我到目前为止:
from itertools import combinations_with_replacement as cwr
foo = list(cwr('ACGT', n)) ## n is an integer
我对如何前进的直觉是做这样的事情:
import numpy as np
from itertools import permutations as perm
bar = []
for x in foo:
carp = list(perm(x))
for i in range(len(carp)):
for j in range(i+1,len(carp)):
if carp[i] == carp[j]:
carp[j] = ''
carp = carp[list(np.where(np.array(carp) != '')[0])]
for y in carp:
bar.append(y)
for i in range(len(bar)):
for j in range(i+1,len(bar)):
if bar[i] == bar[j]:
bar[j] = ''
bar = [bar[x2] for x2 in list(np.where(np.array(bar) != '')[0])]
有没有更高效的算法?