Hoe can I convert my script to a function?

Hi all,

I coded an script. I want to convert it to fuction so that I can call it whereever it is needed. Could you please guide me how to do that correctly? The inputs of the fuction are Alpha and Mu, and the output is supposed to be lambda.

clear
close all
clc
load("Coefficient.mat")
Alpha=2;
Mu=[0.2 0.4 0.8];
Alpha_vector=Coefficient(:,2)+Coefficient(:,3).*Mu+Coefficient(:,4).*(Mu.^2)+Coefficient(:,5).*(Mu.^3)+Coefficient(:,6).*(Mu.^4)...
    +Coefficient(:,7).*(Mu.^5)+Coefficient(:,8).*(Mu.^6);
Mu_max=[10 10 10 10 10 9 8 sqrt(42) sqrt(30) 5 sqrt(20) sqrt(12) 3 sqrt(6) 2.1040 1.6818 1.4142  0.9487 0.7483 0.6...
    0.4472 0.4 0.3464 0.27 0.22 0.1414];
lambda_min=[0.57 0.46 0.4 0.35 0.32 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3];
lambda=zeros(1,length(Mu));
for t=1:length(lambda)
    if Alpha>8 && Mu(t)>=Mu_max(26)
        lambda(t)=lambda_min(26);
    elseif Alpha>8 && Mu(t)<Mu_max(26)
        lambda(t)=Alpha_vector(26,t);
    else
        for k=1:length(Coefficient(:,1))
            if ismembertol(Alpha, Coefficient(k,1), 1e-8) && Mu(t)>=Mu_max(k)
                lambda(t)=lambda_min(k);
            elseif ismembertol(Alpha, Coefficient(k,1), 1e-8) && Mu(t)<Mu_max(k)
                lambda(t)=Alpha_vector(k,t);
            elseif Alpha>Coefficient(k,1) && Alpha<Coefficient(k+1,1) && Mu(t)>=Mu_max(k)
                lambda(t)=lambda_min(k);
            elseif Alpha>Coefficient(k,1) && Alpha<Coefficient(k+1,1) && Mu(t)<Mu_max(k)
                lambda(t)=interp1([0:0.1:1, 1.2:0.2:2, 2.5:0.5:6, 7, 8], Alpha_vector(:,t), Alpha);
            end
        end
    end
end 

Answer 1

[Torsten]

If the coefficients don't change in the course of the simulation, you should read "Coefficient.mat" only once and pass the matrix to "fun" together with "Alpha" and "Mu".

function lambda = fun(Alpha,Mu,Coefficient)
% Insert your script
end

[Stephen23]

And get rid of CLEAR, CLOSE ALL, CLC.

[Behrooz Daneshian]

Thank you for reply. what would be the name of this function?

[Torsten]

fun

[Behrooz Daneshian]

I got you. thank you so much for your help.