Hi, i want to use the curve fitter with the custome equation:
y(x)=y0*((sin(n*a*(sin(x)/b)*pi))/sin(a*(sin(x)/b)*pi))^2*sinc((sin(x)/b)*pi*c)^2 with n = 5; a = 30e-6; b = 450e-9; c = 450e-9
My data has the following form:
0;3140
1;3073
…
24;3232
25;3349

I always recieve the error message
Fit Name: untitled fit 1

Error: This expression has no coefficients or non-scalar coefficients.
Warning: Ignoring NaNs in data.Hi, i want to use the curve fitter with the custome equation:
y(x)=y0*((sin(n*a*(sin(x)/b)*pi))/sin(a*(sin(x)/b)*pi))^2*sinc((sin(x)/b)*pi*c)^2 with n = 5; a = 30e-6; b = 450e-9; c = 450e-9
My data has the following form:
0;3140
1;3073
…
24;3232
25;3349

I always recieve the error message
Fit Name: untitled fit 1

Error: This expression has no coefficients or non-scalar coefficients.
Warning: Ignoring NaNs in data. Hi, i want to use the curve fitter with the custome equation:
y(x)=y0*((sin(n*a*(sin(x)/b)*pi))/sin(a*(sin(x)/b)*pi))^2*sinc((sin(x)/b)*pi*c)^2 with n = 5; a = 30e-6; b = 450e-9; c = 450e-9
My data has the following form:
0;3140
1;3073
…
24;3232
25;3349

I always recieve the error message
Fit Name: untitled fit 1

Error: This expression has no coefficients or non-scalar coefficients.
Warning: Ignoring NaNs in data. curve fitting, matlab MATLAB Answers — New Questions

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