Talk:Wang and Landau algorithm

code

The presented code is not correct. It only considers the proposal functions such that

$g({\boldsymbol {r}}\rightarrow {\boldsymbol {r}}')=g({\boldsymbol {r}}\rightarrow {\boldsymbol {r}}')$

which is not necessarily true. I don't know D language so I will not change it, but someone should.Jorgecarleitao (talk) 08:17, 29 October 2012 (UTC)

it is stated that the code only is for your case.--129.69.120.39 (talk) 11:58, 2 April 2015 (UTC)

 Done

Error in the presented Algorithm?

Hi the fraction ${\frac {g({\boldsymbol {r}}'\rightarrow {\boldsymbol {r}})}{g({\boldsymbol {r}}\rightarrow {\boldsymbol {r}}')}}$ in

$A({\boldsymbol {r}}\rightarrow {\boldsymbol {r}}')=\min \left(1,e^{S-S'}{\frac {g({\boldsymbol {r}}'\rightarrow {\boldsymbol {r}})}{g({\boldsymbol {r}}\rightarrow {\boldsymbol {r}}')}}\right)$

does not occur in the original Wang-Landau algorithm. Where does it come from, is it correct? --129.69.120.39 (talk) 11:56, 2 April 2015 (UTC)

See also https://en.wikipedia.org/wiki/User_talk:Jorgecarleitao#Wang_and_Landau_algorithm --129.69.120.39 (talk) 12:05, 2 April 2015 (UTC)

the original algorithm assumed a symmetric proposal distribution. see e.g. Metropolis–Hastings_algorithm Biggerj1 (talk) 13:25, 11 January 2016 (UTC)  Biggerj1 (talk) 13:25, 11 January 2016 (UTC)