The Matlb help for lsqcurvefit() does not show any output variable with the name errorfitted. The outputs available from lsqcurvefit() are shown under Syntax, below. Which of these output variables corresponds to the quantity which you are calling errorfitted?
My guess is that you are referring to resnorm or to residual.
- resnorm is a scalar. It equals the sum of the squared differences between ydata and f(xdata). Therefore the units for resnorm are squared (y-units).
- residual is a vector or array, if ydata is a vector or array. It equals the differences between ydata and f(xdata). Therefore the units for residual are y-units.
Syntax
x = lsqcurvefit(fun,x0,xdata,ydata)
x = lsqcurvefit(fun,x0,xdata,ydata,lb,ub)
x = lsqcurvefit(fun,x0,xdata,ydata,lb,ub,options)
x = lsqcurvefit(problem)
[x,resnorm] = lsqcurvefit(___)
[x,resnorm,residual,exitflag,output] = lsqcurvefit(___)
[x,resnorm,residual,exitflag,output,lambda,jacobian] = lsqcurvefit(___)
