Python中的 numpy.irr()

numpy.irr(values) ：此财务函数可帮助用户计算 IRR 值，即内部收益率，即。 “平均”周期性复合回报率。

Parameters : 
values : [array-like] Input cash flows per time period. net “deposits” are negative and net “withdrawals” are positive
Return : Internal Rate of Return for periodic input values.

代码：

Python3

# Python program explaining
# irr() function
 
import numpy as np
'''
Question :
 
    Investment = 500
    Withdrawls at regular interval : 50, 31, 3, 11
'''
 
Solution = np.irr([-500, 50, 31, 3, 11])
 
print("Solution - Internal Rate of Return : ", Solution)

输出：

Solution - Internal Rate of Return :  -0.5296447721512683