Anonymous Function Error Question
1 view (last 30 days)
I am trying to write an anonymous function that will take the equation and then it will find the parameters for x(1) and x(2). It's telling me that my it can't do it because the size of the left side is 1-by-1 and the size of the right side is 41-by-1. The drug1Dose is a 41x1 structure. Attached is my code. Thank you for your help in advance!
f= @(X,c) c.^X(2)./(X(1)^X(2)+ c.^X(2));
Star Strider on 10 Mar 2021
The problem you want to solve is not at all clear.
It would appear that you are doing curve-fitting (parameter estimation), with independent and dependnet variables. If so, ‘fun’ needs to be:
fun = @(x) norm(c - f(x,t));
assuming that you are estimating the pharmacokinetic parameters of your model sa a function of time.
In any event, ‘fun’ needs to return a scalar, not a vector, for fminsearch (or any other optimisation function) to work correctly.