Ventana software support forum

Thank you very much for your suggestions. It works fine now

Hello, This is probably a quite trivial question. However, I could not find an answer yet. I am trying to setup optimization in Vensim so that it tells me for which value of a parameter a given value of a variable is reached in the shortest time. So I am trying to find the value of a parameter which...

That's a very nice and elegant way! Thanks a lot!

Hi, I am trying to select and change only one element of an array which satisfies a certain condition even if there are several elements within this array which satisfy that condition. For example, I have the following array v=(-1,-1,0,0,0) in which two elements equal -1 (the condition). However, I ...

Thank you very much for your suggestions! I'll have a closer look at them.

I need it to calculate the eigenvector centrality of nodes in a network. I only need to compute the eigenvector of the largest eigenvalue. In addition, it is a symmetrical matrix. This should facilitate the calculation of the respective eigenvector at every time step. If possible, it would be great ...

Thank you very much! I am looking forward to your suggestion.

Hello Tony,

Ok, I found the mistake. I selected the wrong Vensim Version. Now it should be okay.

Kind regards,
Agroe

Hi, I am working with a symmetric matrix (2-dimensional array) and was wondering if there is any way to compute the eigenvalues and eigenvectors of this matrix within Vensim Professional at every Time Step (the matrix changes over time). Alternatively, is there a way to export the matrix to Excel, M...