sum data of histogram with python-CodePudding

i have a data of;

profile_bucket | price
a          10
b          15
c          5
a          7
c          20

doing hist chart with this kind of data, but hist gives me a count of the values, but I need the sum of the price instead of the count. any ideas? Using py.

CodePudding user response：

df = pd.DataFrame({'profile_bucket':['a','b','c','a','c'], 'price':[10,15,5,7,20]})
df = df.groupby('profile_bucket').sum()
df = df.reset_index()

Output:

    profile_bucket  price
0   a   17
1   b   15
2   c   25

CodePudding user response：

Because histogram is to bin the data df['price'] and count the number of values in each bin, so if you want to sum the price, use bar chart instead:

d = {'profile_bucket': ['a','b','c','a','c'], 'price': [10,15,5,7,20]}
df = pd.DataFrame(data=d)
df2 = df.groupby('profile_bucket').sum()
df2.plot(kind='bar')

Output: