Hi

MCMC is one of the optimization algorithm implemented in SWATCUP program. You may find useful information about this algorithm and a few others in the program user manual:

http://www.eawag.ch/forschung/siam/software/swat/index

Best, Ababaei

Thank you  Behnam I will look at the link above 

You are welcome. I think this paper would also be helpful for you.

I appreciate Behman .. I downloaded the article and looking on the details .. I appreciate Thanks

Have also a look at the DREAM algorithm:

http://dream.r-forge.r-project.org/

Joseph Guillaume used also for SWAT:

http://www.sciencedirect.com/science/article/pii/S1364815213000753

Cheers,

Martin

The 1998 J Hydrol paper by Kuczera and Parent is one of the earliest application of the Metropolis algorithm with rainfall-runoff models I am aware of: http://www.sciencedirect.com/science/article/pii/S002216949800198X

Martin Thank you for the idea of using DREAM algorithm I am trying this option as well...

Jean- Francois that's really a useful article that suits my needs. The optimization  I am going through is for a water balance conceptual model.

Thanks Claudia ... looks very helpful 

I propose DREAM_ZS algorithm.

http://faculty.sites.uci.edu/jasper/sample/

This is Jasper Vrugt's website. He is a very nice guy.

Oh yeah I see very helpful Thanks Jiangjiang also Martin hinted about dream package as well. I installed it and I will play around with it ... otherwise for those who wish to go through details for mcmc this link could be helpful and a good move http://www.uncertain-future.org.uk/RSoftware.htm