生成字符串中的字符循环, Python中随机选择带有权重的方法

Question

我正在尝试编写一个循环，该循环将生成一个由已定义字符组成的随机字符串'X,T,B,G'，该字符串的每个位置都有一组唯一的权重。

在循环中，所需的输出如下所示：

['TTGXB',
 'BXTBT',
 'XTBXT',
 'GTTGB',
 'XXBBB',
 'BGXXX',
 'XTXTT',
 'XTTGB',
 'TGBBG',
 'TGXXB']

数据帧示例：

^{pr2}$

stats.to_numpy()要获取用于随机字符串生成的权重数组：

^{3}$

理想情况下，我可以自动输入上面的np.array中的权重。

Answer 1

x = [pos_1, pos_2, pos_3, pos_4]
[''.join([random.choice(i) for i in x]) for _ in range(10)]

输出样品

^{pr2}$

---

您可以通过

x = [['X'] * 28 + ['T'] * 21 + ['B'] * 23 + ['G'] * 28, ['X'] * 29 + ['T'] * 22 + ['B'] * 23 + ['G'] * 26, ['X'] * 29 + ['T'] * 22 + ['B'] * 23 + ['G'] * 26, ['X'] * 29 + ['T'] * 22 + ['B'] * 23 + ['G'] * 26]

[''.join([random.choice(i) for i in x]) for _ in range(10)]

---

要使过程自动化，请尝试

weight = [[28,21,23,28], [29,22,23,26],[29,22,23,26],[29,22,23,26]]
alp = [['X'], ['T'], ['B'], ['G']]
x = [sum([w[i]*alp[i] for i in range(len(alp))], []) for w in weight]
print([''.join([random.choice(i) for i in x]) for _ in range(10)])