从 Pandas 中获取描述性文本

Question

我有这个数据框

df = pd.DataFrame(data = {"Store":["a","b","c","c","d"],"Goods":["x","x","x","y","x"]})

  Store Goods
0     a     x
1     b     x
2     c     x
3     c     y
4     d     x

我想要一个描述性的输出，告诉我每种商品在哪些商店有售，像这样

The Good x is available at:
a
b
c
d

The Good y is available at:
c

所以我尝试了这个

for index, row in df.groupby(['Goods', 'Store']).count().iterrows():
    print("The Good " + index[0] + " is available at:" + "\n" + index[1] + "\n" + "\n")

得到了这个

The Good x is available at:
a
The Good x is available at:
b
The Good x is available at:
c
The Good x is available at:
d
The Good y is available at:
c

我怎样才能做到正确？

Answer 1

你可以试试groupby

for x , y in df.groupby('Goods'):
    print('The Good {} is avaliable at:'.format(x))
    print (y['Store'].to_string(index=False))
    
The Good x is avaliable at:
a
b
c
d
The Good y is avaliable at:
c