2020-04-30
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4698
dataframe指定某列为行索引,题目详情见正文
df表如下:

要求将”num“作为行索引,实现效果如下:

参考代码:
np.random.seed(0)
B = pd.Series(["Allen","Lucy","Tom","Alice","Tim","Lily"], dtype="string")
C = pd.Series(np.random.randint(20,40,6, dtype="int"))
A = pd.Series(["001","002","003","004","005","006"])
df = pd.DataFrame({'name':B, 'sale':C,'num':A})
df
df.set_index("num")
代码结果:







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