NumPy

numpy.mirr

numpy.mirr(values, finance_rate, reinvest_rate)[source]

Modified internal rate of return.

Deprecated since version 1.18: mirr is deprecated; for details, see NEP 32 [1]. Use the corresponding function in the numpy-financial library, https://pypi.org/project/numpy-financial.

Parameters
valuesarray_like

Cash flows (must contain at least one positive and one negative value) or nan is returned. The first value is considered a sunk cost at time zero.

finance_ratescalar

Interest rate paid on the cash flows

reinvest_ratescalar

Interest rate received on the cash flows upon reinvestment

Returns
outfloat

Modified internal rate of return

References

1

NumPy Enhancement Proposal (NEP) 32, https://numpy.org/neps/nep-0032-remove-financial-functions.html

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