save variable in matlab app designer

Hi, I'm trying to save variables when I push a button and put them in a .mat file using the matlab app designer

so far I have it written as:

function SaveMassScaleButtonPushed(app, event)
    save('descaling_app.mlapp','app.ms1','app.b1_1','app.m1_1','app.m2_1','app.b2_1')
end

but it gives me an error saying:

Error using save

'app.ms1' is not a valid variable name.

I even had the variable under my properties as:

properties (Access = private)
    ms1;
end

and in my start up function as

function startupFcn(app)
    app.ms1;
end

Answer 1

[Cris LaPierre]

My recommendation would be to do the following

function SaveMassScaleButtonPushed(app, event)
    ms1 = app.ms1;
    b1_1 = app.b1_1;
    m1_1 = app.m1_1;
    m2_1 = app.m2_1;
    b2_1 = app.b2_1;
    save('descaling_app.mat','ms1','b1_1','m1_1','m2_1','b2_1')
end