Azzera filtri
Azzera filtri

how to do sensitivity analysis

5 visualizzazioni (ultimi 30 giorni)
voZnW
voZnW il 10 Gen 2023
Commentato: Arthur Goldsipe il 10 Gen 2023
Hi, I want to do the sensitivity analysis for the PBPK model. I add a program "calculate sensitivities" , but in "SENSIVITITIES TO COMPUTE" ,I can't select my output. My output is the observation in the model, and the observation is the sum of several terms. How can I use the observation as my output to run the sensitivity analysis?
Thank you very much.

Risposte (1)

Arthur Goldsipe
Arthur Goldsipe il 10 Gen 2023
Hi,
It's not currently possible to use an observable as a sensitivity analysis input or output. One workaround is to perform sensitivity analysis on the things the observable depends on. So if your observable is the sum of X and Y, then its sensitivity is the sum of the sensitivities of X and Y.
-Arthur
  1 Commento
Arthur Goldsipe
Arthur Goldsipe il 10 Gen 2023
Oh, a colleague reminded me that another option is to do global sensitivity analysis (GSA) instead of local sensitivity analysis (LSA). GSA supports sensitivity analysis for observables. If your parameter ranges are narrow, the results may be comparable. And if you are interested in the behavior of your model over a large parameter range, then GSA may actuall be preferable to LSA. You can find more information about GSA here.

Accedi per commentare.

Community

Più risposte nel  SimBiology Community

Categorie

Scopri di più su Perform Sensitivity Analysis in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by