Undefined function 'log10' for input arguments of type 'embedded.fi'.

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0 个投票

Dear All,

Can you help me to understand this error message and how to avoid these errors?

Here is the longer version of the message:

Undefined function 'log10' for input arguments of type 'embedded.fi'.
Error in parameterFun (line 9)
part2 = log10(part1);
Error in procDataFit>@(x,f)parameterFun(x,f)

The error emerges when I try to use the optimization toolbox to do a curve fitting. The equation for this work is stored in a separate function file (the code is below) and I call the function as

x = [fr(i),g0,K,offset];
    fun = @(x,f)parameterFun(x,f);
    x = lsqcurvefit(fun,x,fi,RINData);

------------ the code of annonymous function parameterFun.m -----------

function minRin = parameterFun(x,f)
dFactor = ( x(2) + x(3));
part1 = ((f.*1e6).^2+(dFactor./(2.*pi)))
part2 = log10(part1);
minRin = x(4) + 10*part2;