Prev: How can I automate a script asking for terminal input?
Next: error using lsqcurvefit function
From: Eli Melaas on 9 Jun 2010 17:00
I am trying to use the lsqcurvefit function as such:

M.file - "Phenocam"
xdata = [0.9 1.5 13.8 19.8 24.1 28.2 35.2 60.3 74.6 81.3];
ydata = [455.2 428.6 124.1 67.3 43.2 28.1 13.1 -0.4 -1.3 -1.5];
x0 = [100; -1]; % Starting guess
[x,resnorm] = lsqcurvefit(@my_fun_Phenocam,x0,xdata,ydata);

M.file - "my_fun_Phenocam"
function F = my_fun_Phenocam(x,xdata)
F = x(1)*exp(x(2)*xdata);

.......and I am consistently getting the following error message:
??? Error using ==> feval
Undefined function or method 'my_fun_Phenocam' for input arguments of type 'double'.
Error in ==> lsqcurvefit at 209
initVals.F = feval(funfcn_x_xdata{3},xCurrent,XDATA,varargin{:});
Caused by:
Failure in initial user-supplied objective function evaluation. LSQCURVEFIT cannot continue.

Any ideas what is wrong with my code?

Thanks!
 | 
Pages: 1
Prev: How can I automate a script asking for terminal input?
Next: error using lsqcurvefit function