numpy-financial issues

Adding Profitability Index computation (PI)

1

Hello! I added PI value calculator as a function which returns the profitability of a project. Reference: https://en.wikipedia.org/wiki/Profitability_index Interpretation: PI > 1: project is acceptable PI < 1: project is...

patakib

Add CUMPRINC and CUMIPMT functions

2

The Open Document Format for Office Applications (OpenDocument)v1.2 on which numpy-financial is based specifies two functions which are currently not implemented: CUMPRINC and CUMIPMT. These functions calculate the cumulative principal...

eduardosl

enhancement

pmt() function too slow - here are some ways to make it faster

3

**The pmt() function of numpy_financial is too slow** and can become the main bottleneck in all those cases where it must be run thousands, if not millions of times -...

garfieldthecat

enhancement

PPMT not behaving as expected

10

Hello, My apologies if this isn't the right place to post, I am a simple user rather than a developer. I just couldn't find a more appropriate location for this...

VikkioKPMG

np.pmt documentation is misleading on calculating monthly rate

13

## Documentation To calculate the monthly rate, you should calculate as `(1 + annual_rate) ** (1/12) - 1` rather than simply divide it by 12. ``` Examples -------- >>> import...

kigawas

XIRR for non-periodic cash flows?

3

Both [Excel](https://support.office.com/en-us/article/xirr-function-de1242ec-6477-445b-b11b-a303ad9adc9d) and [LibreOffice](https://wiki.documentfoundation.org/Documentation/Calc_Functions/XIRR) provide XIRR to calculate the IRR for non-periodic cash flows. Do we have a plan to add this feature?

xuhdev

enhancement

Error in numpy-financials IRR computation - eigenvector did not converge

2

Within a code, I compute the IRR of a set of 1000 cashflows with numpy-financials ("npf"). Each time the code stops and delivers the following message : ``` File "C:\Users\navag\anaconda3\envs\tf2\lib\site-packages\numpy_financial\_financial.py",...

JDE65

Rework functions to use ufuncs?

7

The implementation of e.g. `nper`: https://github.com/numpy/numpy-financial/blob/master/numpy_financial/_financial.py#L229 requires the usual “split the array up using boolean indexes and then do different things to each hunk” stuff that you have to do...

person142