running simulation with different initial condition without compiling

[arnabbandyopadhyay]

Hi D2D team,
I want to check the dynamics starting from different initial conditions keeping parameters, observables same. What I want to implement is the following:

arInit
arLoadModel(deffile);
arLoadData(datafile);
arCompileAll;

for i=1:100
modify initial condition
arFitLHS
arPlot
store data
end

computation time is very high if I compile inside the for loop. Which variable do I need to modify for changing initial condition, or is there other way to implement this?

Thank you

[adrianhauber]

Hi arnabbandyopadhyay,

if you do not specify the initial condition of an observable in the CONDITIONS section in the data or model def file, D2D will interpret the initial condition as a parameter that can be estimated alongside the other parameters of your model. To set it to a fixed value, you may use arSetPars with the qFit argument set to zero instead of "modify initial condition" in the pseudocode you provided.

Best,
Adrian