How to save classes in matlab in persistent variables during code generation

If objects are stored in persistent variables, initialize System objects once by embedding the object handles in an if statement with a call to isempty().

How to implement this sentence

function PFesti()
    if(isempty(pf@stateEstimatorPF))
        pf = stateEstimatorPF;
    else
        pf.predict();
    end
end

I wrote these codes above but it doesn't work, does anyone know how matlab's classes are initialized only once after the embedded code is generated？

Answer 1

[Walter Roberson]

function PFesti()
    persistent pf
    if isempty(pf)
        pf = stateEstimatorPF;
    end
    pf.predict();
end

[x lang]

thank you. it works