For all of these, I wrote my own class with methods to create the correct output. there is not built in python functionality that I know, although there may be a package.
For IRR, the method expects a list and at least one negative value. I believe the way I did NPV was a dictionary, where the key was the discount rate and the value was a list of cash flows. For NPV specifically, I wrote this as a C module, but I need to rewrite this because I didn't know much about C at the time. It works and all, but I feel it could be more efficient. For my purposes, NPV and IRR calculations are fairly slow using native Python and you will may want to consider writing some of this in C as a python extension if you can. My view is if you aren't doing a large number of calculations, just use excel. If you are, speed becomes an issue. On Tue, Mar 15, 2011 at 8:00 PM, Carla Jenkins <carlarjenk...@yahoo.com>wrote: > Are there specific Python commands to process present value, future value > and net present value? Thanks. > > Sincerely, > Carla Jenkins > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > http://mail.python.org/mailman/listinfo/tutor > >
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