Python中的 numpy.mirr()

numpy.mirr(values, finance_rate, reinvest_rate) ：此财务函数可帮助用户计算修改后的 IRR 值，即修改后的内部收益率，即。 “平均”周期性复合回报率
内部收益率等于 -

Parameters : 
values : [array-like] Input cash flows per time period. net “deposits” are negative and net “withdrawals” are positive 
finance_rate : Interest paid on cash amounts. 
reinvest_rate : Interest received on cash amounts.
Return : Modified Internal Rate of Return for periodic input values ie. considering interest values.

代码：

Python3

# Python program explaining
# mirr() function
 
import numpy as np
'''
Question :
 
    Investment = 500
    Withdrawls at regular interval : 50, 31, 3, 11
'''
 
Solution = np.mirr([-500, 50, 31, 3, 11], .34, .21)
 
print("Solution - Modified Internal Rate of Return : ", Solution)

输出：

Solution - Modified Internal Rate of Return :  -0.26165615714437973