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spedygiorgio / markovchain

Easy Handling Discrete Time Markov Chains
https://spedygiorgio.github.io/markovchain/
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remove dependency by expm #40

Closed spedygiorgio closed 9 years ago

spedygiorgio commented 9 years ago

Currently the markovchain package relies on expm package for powering of transition matrix (it loads the operator %^%). Check whether it were possible to implement the power internally

dutangc commented 9 years ago

It's not complicated to extract the code writtent by M Maechler. But the true question is : will we use other functions of expm in the future? for continuous time markov chains, expm and logm might be needed?

ysaibhargav commented 9 years ago

I do intend to implement functionality for CTMCs (for eg, computing P(t) - states probability at time t) that will require matrix exponentials.

dutangc commented 9 years ago

So it's safer not to reimplement in markovchain what M Maechler has done in expm.

spedygiorgio commented 9 years ago

Agreed

Inviato da iPhone

Il giorno 03/lug/2015, alle ore 10:33, Christophe Dutang notifications@github.com ha scritto:

So it's safer not to reimplement in markovchain what M Maechler has done in expm.

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