D:\pythonProject_ecg_analyzation\GetBeats.py:32: VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you meant to do this, you must specify 'dtype=object' when creating the ndarray. beat = np.array([beat]).astype(float) TypeError: only size-1 arrays can be converted to Python scalars The above exception was the direct cause of the following exception: Traceback (most recent call last): File "D:\pythonProject_ecg_analyzation\main.py", line 22, in <module> GetBeats.getbeats(r_peaks, ecg_voltage, user_number) File "D:\pythonProject_ecg_analyzation\GetBeats.py", line 32, in getbeats beat = np.array([beat]).astype(float) ValueError: setting an array element with a sequence.怎么改
时间: 2023-12-10 19:41:07 浏览: 188
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这个错误提示是因为在将一个列表转换为 ndarray 时,列表中有嵌套的子列表,而这些子列表的长度不同,导致无法转换。解决方法是将所有的子列表长度都设置为相同的长度,可以在短的子列表后面加上一些空值或者删除多余的数据。
另外,如果你只是想将一个列表转换为 ndarray,可以使用 np.asarray() 函数,它可以自动处理嵌套列表的情况。例如:
```
beat = np.asarray(beat, dtype=float)
```
这行代码会将列表 beat 转换为 ndarray,并将数据类型设置为 float。如果列表中包含非数字的元素,转换时会抛出异常。
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