Log-normal stochastic

Answered

Follow

Felix Pertziger

• August 23, 2016 21:39

I love Optimisation part of software and use this very simple model to find best set of parameters to fit probability curve to observed runoff series, i.e. flood frequency analysis:

Optimisation runs smoothly and produce reasonable results for Mean and Standard Deviation for  extreme values, normal and gamma distributions.

It stumbles however with log-normal distribution no matter parameters range. It produce blank screen i.e. no "depletion" red line.

What am I missing here?

1

• Official comment

  

  Nick Martin

  • August 25, 2016 16:37

  Felix,

  I think it is possible that upgrading to the latest GoldSim version will fix this issue and it is likely not anything that you are doing. Can you try this and let us know if this fixes the issue.

  In GoldSim 11.1.6 (the current version), I get the following warning message and the red line is shown and there are values calculated.

  

  Comment actions Permalink

Please sign in to leave a comment.