python - 使用 pandas、python 创建字典，返回错误 : "return self._engine.get_loc(key)"

Question

这是数据集的示例

Umls                                    Snomed
C0027497/Nausea /Sign or Symptom    Nausea (finding)[FN/422587007] 
C0151786 / Muscle/Sign or Symptom   Muscle weakness [(finding) /FN/26544005]
C2127305 /bitter/ Sign or Symptom    ?
NA                                   NA

这是我创建数据字典的代码:

df_dic_1= df_dic_1[['UMLS', 'snomed']]

df_dic_1['umls'].fillna(0, inplace=True)
df_dic_1['snomed'].fillna(0, inplace=True)

equiv_snomed=df_dic_1.set_index('umls')['snomed'].to_dict()

但它会产生以下错误:

"   return self._engine.get_loc(key)"

有什么帮助吗？

Answer 1

试试这个

df_dic_1= df_dic_1[['UMLS', 'snomed']]

df_dic_1['UMLS'].fillna(0, inplace=True)
df_dic_1['snomed'].fillna(0, inplace=True)

equiv_snomed=df_dic_1.set_index('UMLS')['snomed'].to_dict()

因为你有一个关键错误