python3 跑 alpha075 报错

[SunRunAwayAwayAway]

Traceback (most recent call last):
  File "/Users/xxx/code/futudata/main.py", line 57, in <module>
    ret = l.alpha_075(**kwargs_l)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/ta_cn/alphas/test191.py", line 505, in alpha_075
    return COUNT((CLOSE > OPEN) & (BANCHMARKINDEXCLOSE < BANCHMARKINDEXOPEN), 50) / COUNT(
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/ops/common.py", line 70, in new_method
    return method(self, other)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/arraylike.py", line 124, in __truediv__
    return self._arith_method(other, operator.truediv)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/series.py", line 5639, in _arith_method
    return base.IndexOpsMixin._arith_method(self, other, op)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/base.py", line 1295, in _arith_method
    result = ops.arithmetic_op(lvalues, rvalues, op)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/ops/array_ops.py", line 220, in arithmetic_op
    _bool_arith_check(op, left, right)
  File "/Users/xxx/.conda/envs/futudata/lib/python3.10/site-packages/pandas/core/ops/array_ops.py", line 520, in _bool_arith_check
    raise NotImplementedError(
NotImplementedError: operator 'truediv' not implemented for bool dtypes

[SunRunAwayAwayAway]

数据量(pd._testing._N)变多后就没问题了。。

[wukan1986]

t1 = BANCHMARKINDEXCLOSE < BANCHMARKINDEXOPEN
COUNT((CLOSE > OPEN) & t1, 50) / COUNT(t1, 50)

operator 'truediv' not implemented for bool dtypes
除法的参数不能为bool类型

COUNT(bool类型的数组, 50)，会将bool类型当成1或0进行求和。按理来说COUNT结果应当是np.ndarray类型的整数，而不是纯bool