R help - Jul 2014 - Fwd: Need help in finding ppval function and xirr function of matlab in R

Hi,

I am new to R language.Am writing matlab calculations in R language.
I am searching for functions in R which are equivalent to matlab.
So, i am not finding equivalent ppval() and xirr() of matlab in R.

Please help me in finding the functions.

Thank you
SowmyaR

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