Empty plot: I need to plot one variable vs Results of fmincon

    clc
    d0 = 0.01:1;
    Xmat = zeros(numel(d0),5);
    for i=1:numel(d0)
      d0_actual = Ef(i);
      x0 = [0.08, 9.14, 10, 1, 0.1];
      options=optimset('fmincon');
    options.Display='iter';
    options.Algorithm='interior-point';
       fitnessfcn = @(x)Lobo(d0_actual, x(2), x(3), x(4), x(5));
      nonlcon1 = @(x)nonlcon(d0_actual, x(2), x(3), x(4), x(5));
      lb = [0.08, 9.14, 10, 1, 0.1];
      ub = [1, 18.3, 1300, 25, 1];
      [X, fval] = fmincon(fitnessfcn, x0, [], [], [], [], lb, ub, nonlcon1, options);
      Xmat(i,:) = X(:);
        X
      disp(X);
    end
    plot(d0(i), Xmat(i,1));

[Torsten]

plot(d0, Xmat(:,1));

[Devdatt Thengdi]

Tried that. Still the same. It is only taking a single value.

[Torsten]

That's no surprise ; d0 only has 0.01 as value (i.e. numel(d0)=1).

[Devdatt Thengdi]

What I am trying here is to plot all the values of d0 vs all the values of Xmat. I defined a range of values using,

   d0 = 0.01:1;

for each value of d0, I have a Xmat stored as,

Xmat(i,:) = X(:);

Then why is there no plot?

[Torsten]

d0 = 0.01:1

generates d0 as d0 = 0.01, i.e. one single value, not a vector of values as you might expect.

Maybe you mean d0 = 0.01:0.01:1 ?

Best wishes

Torsten.

[Devdatt Thengdi]

Oh But, when you don't want to provide a step size it's d0 = 0.01:1; Right ? Or is it? d0 = 0.01:1;

[Torsten]

If you write d0=0.01:1, the step size is automatically chosen to be 1. Since 0.01+1 = 1.01 > 1, lower limit + stepsize > upper limit. Thus d0 = 0.01 only.

Best wishes

Torsten.

[Devdatt Thengdi]

Okay thanks.