Performing a parametric sweep in Matlab

Hello, I have an equation for the motion of a spring. I need to perform a parametric sweep by varying two of the constants in the equation and seeing the effect that it has.

M_spring (θ_1 )=  (dx+r*sin(θ_3))/(dy+r*cos(θ_3)) *K*L + m_1 l_1  cos(θ_1)* (θ_1dot) 

      θ_1 = 90º
        θ_1dot = 10º/s
      θ_3 = 62º
        dx = .015 m
        dy = .021 m
        m_1 = .25*10^-3 kg
        l_1 = .006 m
        L = .04 m

i need to vary K and r and run a parametric sweep. K = 0 to 500 and r=.05 to .2

can someone please help explain how this is done? Thank You

[Star Strider]

See: http://www.mathworks.com/matlabcentral/answers/282625-need-help-performing-a-parametric-sweep-keep-getting-error

Answer 1

[Geoff Hayes]

Joseph - given that you have two variables, I suspect that you will want to iterate over each one using two for loops. Perhaps something like

 for K=0:1:500         % step size of 1   (guess only)
     for r=0.5:0.1:2   % step size of 0.1 (guess only)
       % do something with K and r
       % save result to matrix
     end
 end

On each iteration, you will probably want to save the results to a matrix so that you can do a proper comparison once complete.