How can I get measured data and simulated data to match?

I have some measured data and some simulated data and I have to get the best match with the least square method. I want to multiplicate the simulated data with a variable and add a variable to accomplish this.

Is there already a program for this, respectively how could I solve this?

Answer 1

[Greg Heath]

If

[ I N ] = size(measured)

Solve the matrix equation

W*[ ones(1,N); simulated ] = measured

[Monika]

I don't think Matlab can solve this, there are more equations than variables. And where does least square come in?

[Matt Kindig]

To complete Greg's code:

L = [ ones(1,N); simulated];
W = measured / L;

The least-squares fitting is implicitly done by Matlab in the matrix division (/). This works even if there are more equations than variables.

[Monika]

Thank you both very much, it works perfectly :-)