I have the following dataframe, df
:
peaklatency snr
0 52.99 0.0
1 54.15 62.000000
2 54.12 82.000000
3 54.64 52.000000
4 54.57 42.000000
5 54.13 72.000000
我将尝试按照
snr
进行排序:df.sort_values(df.snr)
但是这引发了一个问题。
_convert_to_indexer(self, obj, axis, is_setter)
1208 mask = check == -1
1209 if mask.any():
-> 1210 raise KeyError('%s not in index' % objarr[mask])
1211
1212 return _values_from_object(indexer)
KeyError: '[ inf 62. 82. 52. 42. 72.] not in index'
我没有在这个DataFrame上显式设置索引,它是从列表推导中来的:
import pandas as pd
d = []
for run in runs:
d.append({
'snr': run.periphery.snr.snr,
'peaklatency': (run.brainstem.wave5.wave5.argmax() / 100e3) * 1e3
})
df = pd.DataFrame(d)