how to fetch last value for column in python dataframe

Question

How can I fetch last value of column in dataframe.

close_value = from_csv['close_price'].tail(1)

Here is from_csv is my dataframe This gives me the needed output but in different format(given below)

 Name: close_price, dtype: float64
    1    0.985

I just want to store .985 in variable

Answer 1

from_csv.close_price.iloc[-1]

iloc按位置选择， -1表示最后一个位置。

Answer 2

Maybe this is not the most straightforward method, but for me the following seems to do what you want:

import pandas as pd
import numpy as np
df = pd.DataFrame(np.random.rand(4,4),columns=['a','b','c','d'])
df['a'].values[-1]