我在用Python2.7。我正在学习熊猫,并正在执行pivot_table。在实现pivot_tabledocumentation中给出的示例时:
raw_data = {'A':['foo','foo','foo','foo','foo','bar','bar','bar','bar'],
'B':['one','one','one','two','two','one','one','two','two'],
'C':['small','large','large','small','small','large','small','small','large'],
'D':[1,2,2,3,3,4,5,6,7]}
df = pd.DataFrame(raw_data)
df.pivot_table(df,index = ['A','B'], values = 'D',columns = 'C', aggfunc = 'sum')
运行时,我得到以下错误: TypeError:pivot_table()为关键字参数“values”获取了多个值
有人知道为什么会这样吗?
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df
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