On Monday, 11 January 2016 11:16:47 UTC+1, Qcode wrote: > > Hi Francesco, > > Can you higlights those 2 items ? > > > 1) Do you expect to manage algebric forms of expectation as base > structure ? >
My intention is to add expressions. Once you have a class for *Variance* and a class for *Expectation*, you can easily write a function to expand the variance expression into expectations, and (maybe less easily) vice versa. > 2) How would you expect to manage when X and Y are not independant ? > Well, that's a hard problem. I am not away of dependent RV management in the current code. RV and created by *RandomSymbol* or something similar, and they are meant to represent a single variable distribution. Adding a concept like independence may require some review of the existing code, and has to be pondered carefully. > > 3) What is the current status of functionnality/architecture ? > > These are various links to get an idea of what SymPy currently can do: - https://github.com/sympy/sympy/wiki/GSoC-2011-Report-Matthew-Rocklin%3A-Random-Variables - http://people.cs.uchicago.edu/~mrocklin/tempspace/sympystats.pdf - http://matthewrocklin.com/blog/work/2012/12/03/Characteristic-Functions/ -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/db4fba5b-b5b7-4fde-b57a-c2b0513a3de3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
