Describe what you have and what you want to know, in your own words. This points you at the right tool — or says plainly that there isn't one here.
PhysWall inverts a closed, non-linear physical law at a single measurement point — and refuses when the inverse is not unique.
⚠ This does not answer the question. It routes. Every number on this site comes from a tool that shows its working and refuses when the measurement cannot carry a conclusion — and a router that guessed at values would be the exact thing those tools exist to argue against.
Maturity: filter. it routes to a tool and computes nothing itself.
A checking tool, not professional advice. It tells you what a measurement does and does not support; what to do about that is your decision.