title: Unable to find why error "Not enough input arguments", Matlab
body: <p>I encountered a problem calling the function defined in the code below.. According to Matlab I do not have enough input arguments in the nested function Chi, when I use the function by typing in "Awesomefit(V,I,Ierr)". However I cannot really explain why, since all the input the function needs should be provided.. V, I and Ierr are matrices of 148x1 double and get initialized before calling up the function.</p>
  
  <p>Does anyone have an idea what could be missing? </p>
  
  <p>Matlab also shows an error message in the line with fminsearch. I do not know if this is related to the other error message or to wrongly using the "fminsearch" command. Right now I would think it is the latter possibility. But this is definitely not my main issue. I hope I can cope with that once i got the other problem solved. </p>
  
  <p>Please excuse my unorthodox programming style, but I'm a physicist trying to program :/ I'm still giving my best though..</p>
  
  <pre><code>%% do stuff
  
  function a = Awesomefit(V,I,Ierr)
  
  % initialize starting values
  A = 1;
  Vbd = 25;
  n = 1.2;
  b = -0.01;
  Var = [Vbd n b];
  
  %do stuff
  a = fminsearch(Chi,Var);
  
  
  function Ifit = InotNorm(V,Vbd,n,b)
      Ifit = zeros(size(V));
      for i = 1:length(V)
          if V(i) &lt; Vbd,
              Ifit(i) = 2*10^-12;
          else
              Ifit(i) = A * abs( (V(i)-Vbd) / (V(i)-Vbd+1/(n*b)) )^n;
          end
      end
  end
  
  
  function NM = NormMod(Vbd,n,b)
      NM = sum(InotNorm(V,Vbd,n,b) ./ Ierr);
  end
  
  
  function ND = NormDat(I,Ierr)
      ND = sum(I ./ Ierr);
  end
  
  
  function C = Chi(Vbd,n,b)
      C = sum(( (InotNorm(V,Vbd,n,b) .* NormDat(I,Ierr) ./ NormMod(Vbd,n,b) - I) ./ Ierr ).^2);
  end
  
  
  end
  </code></pre>