simtk.org

Hi everyone,
I am running Static Optimization with the Matlab API. In my simulations, I have to increase the external force to find the value at which SO fails. Is there a way to automatically get if SO failed or not as an output, without manually reading the command window at each simulation?

Thanks in advance,
Francesca

You should also be able to retrieve this information by checking the out.log and err.log files (renamed to opensim.log as of v4.2; see https://simtk-confluence.stanford.edu:8 ... d=48988768). To detect a certain behavior automatically, you could load this file and search for a particular string.

I have a small MATLAB script that I've developed for exactly this purpose. I put together a demo repository on GitHub that uses the Rajagopal 2015 data and my log parsing function, you can check it out here.

It uses the new Logger() class so I think it will only work in OpenSim 4.3+. You can set the file name of the log to correspond to whatever file you are processing, then the function outputs a processed .csv with a column indicating which timestamps, if any, static optimization failed. It should be pretty easy to adapt for your purposes!

Thanks for the replies.
@John Davis, thank you for sharing the script. I converted my code to 4.3, adapted your script to my case and it worked!