Ventana software support forum

hi and again thank you! So easy with if then...;) (I knew this function but did search for a time function) For avoiding the slow increase of a variable from the start time (until start time the value =0) to its value at the next time step, the only way is to choose the time step as small as possibl...

hi everybody, thanks for the helpful answers... Is there another possibility to let a variable x start at a special time without using another variable y before with the function STEP? Because if I implement an extra variable y with STEP, the variable x starts one timestep later. So do I have tho su...

hi, thanks a lot - this problem I could solve now! (sorry for the bad model, but I thought you could see the model with the arrows and so on). I have lots of other problems...so I will be on the forum the next few days :-) Do you know a exemple for market share with more than two competitors? thanks...

hi and thank you ... So I can't use information from a earlier timestep without implementing stocks? I just want to have the value and not the integral as input for the next step. I have attached a part of my model (see 2nd view). My problems are all the loops! (the equations arn't right yet.) greet...

thank you... I think I have to concretize my problem: It is a model about the market of the generics. The market share from a generic company is dependent from the behavior of the physicians. This behavior is dependant of the actual market share and social effects between the physicians, which are a...

hi, I have two variables dependent from each other (a=10*b and b=10*a). altough I gave them an initial value in the function ACTIVE Initial, I get an error message. How can I solve this equations without using a level-function, wehre the values are accumulated? thanks for your help... greets patrici...