What is wrong with my function?

function LinearOperator
set S=data
for t=S(:,1)
    if t=1 then ViOld=0
    else set ViOld=S(t,2)
    end 
        set Qi=S(t,3)
                end 
                    k=1:length(t)
                    set ViNew(t,k)=alpha*ViOld*(t-1)+(1-alpha)Qi(t) 
    set ViOld=ViNew
    set t=t+1
        end 
end

[Explorer]

The way you have written code in question is not correct. Edit it, select the code only and select code option.

Answer 1

[Walter Roberson]

The first operand to set() must be a graphics handle or object handle, not a string such as 'S=data'

MATLAB does not use 'set' in assignments. Just remove the word 'set' from your code.

[Walter Roberson]

Also, tests use == not =

[Isabel Rojas-Ferrer]

Thank you, that was really helpful.