Curve Fitting

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Start point not provided, choosing random start point.

Last post by omidrostaei « Sat Feb 27, 2021 9:39 am

by omidrostaei » Sat Feb 27, 2021 9:39 am

0 Replies

654 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:39 am
NaN, Inf, or complex value detected in startpoint; \nchoosing random starting point instead.

Last post by omidrostaei « Sat Feb 27, 2021 9:39 am

by omidrostaei » Sat Feb 27, 2021 9:39 am

0 Replies

691 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:39 am
Equation is badly conditioned. Remove repeated data points or try centering and scaling.

Last post by omidrostaei « Sat Feb 27, 2021 9:38 am

by omidrostaei » Sat Feb 27, 2021 9:38 am

0 Replies

823 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:38 am
Equation coefficients are not unique; degree >= number of data points.

Last post by omidrostaei « Sat Feb 27, 2021 9:38 am

by omidrostaei » Sat Feb 27, 2021 9:38 am

0 Replies

717 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:38 am
Iteration limit reached for robust fitting.

Last post by omidrostaei « Sat Feb 27, 2021 9:37 am

by omidrostaei » Sat Feb 27, 2021 9:37 am

0 Replies

770 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:37 am
Duplicate x-y data points detected: using average of the z values.

Last post by omidrostaei « Sat Feb 27, 2021 9:37 am

by omidrostaei » Sat Feb 27, 2021 9:37 am

0 Replies

717 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:37 am
The given fit options specify a fit but the model specifies a fit.

Last post by omidrostaei « Sat Feb 27, 2021 9:37 am

by omidrostaei » Sat Feb 27, 2021 9:37 am

0 Replies

677 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:37 am
Excluded indices must be nonnegative integers that reference the fit''s input data points

Last post by omidrostaei « Sat Feb 27, 2021 9:36 am

by omidrostaei » Sat Feb 27, 2021 9:36 am

0 Replies

733 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:36 am
X, Y and WEIGHTS cannot have NaN values.

Last post by omidrostaei « Sat Feb 27, 2021 9:36 am

by omidrostaei » Sat Feb 27, 2021 9:36 am

0 Replies

897 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:36 am
X, Y and WEIGHTS cannot have Inf values.

Last post by omidrostaei « Sat Feb 27, 2021 9:36 am

by omidrostaei » Sat Feb 27, 2021 9:36 am

0 Replies

735 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:36 am
Cannot fit Weibull function to data where X has nonpositive values.

Last post by omidrostaei « Sat Feb 27, 2021 9:36 am

by omidrostaei » Sat Feb 27, 2021 9:36 am

0 Replies

689 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:36 am
Cannot fit Power functions to data where X has nonpositive values.

Last post by omidrostaei « Sat Feb 27, 2021 9:35 am

by omidrostaei » Sat Feb 27, 2021 9:35 am

0 Replies

737 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:35 am
Cannot fit Fourier functions to data where all the values in X are identical.

Last post by omidrostaei « Sat Feb 27, 2021 9:34 am

by omidrostaei » Sat Feb 27, 2021 9:34 am

0 Replies

664 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:34 am
Complex value computed by model function, fitting cannot continue.\nTry using or tightening upper and lower bounds on co

Last post by omidrostaei « Sat Feb 27, 2021 9:34 am

by omidrostaei » Sat Feb 27, 2021 9:34 am

0 Replies

675 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:34 am
Inf computed by model function, fitting cannot continue.\nTry using or tightening upper and lower bounds on coefficients

Last post by omidrostaei « Sat Feb 27, 2021 9:33 am

by omidrostaei » Sat Feb 27, 2021 9:33 am

0 Replies

696 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:33 am
NaN computed by model function, fitting cannot continue.\nTry using or tightening upper and lower bounds on coefficients

Last post by omidrostaei « Sat Feb 27, 2021 9:33 am

by omidrostaei » Sat Feb 27, 2021 9:33 am

0 Replies

733 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:33 am
Interpolation methods require data where the values in X are unique.

Last post by omidrostaei « Sat Feb 27, 2021 9:33 am

by omidrostaei » Sat Feb 27, 2021 9:33 am

0 Replies

694 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:33 am
Invalid number of independent variables for interpolation. Can only interpolate curves and surfaces.

Last post by omidrostaei « Sat Feb 27, 2021 9:32 am

by omidrostaei » Sat Feb 27, 2021 9:32 am

0 Replies

634 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:32 am
YDATA and WEIGHTS must be the same length.

Last post by omidrostaei « Sat Feb 27, 2021 9:32 am

by omidrostaei » Sat Feb 27, 2021 9:32 am

0 Replies

723 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:32 am
The FITTYPE input is empty. Cannot fit to an empty FITTYPE.

Last post by omidrostaei « Sat Feb 27, 2021 9:32 am

by omidrostaei » Sat Feb 27, 2021 9:32 am

0 Replies

637 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:32 am
X and Y must have the same number of rows.

Last post by omidrostaei « Sat Feb 27, 2021 9:31 am

by omidrostaei » Sat Feb 27, 2021 9:31 am

0 Replies

646 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:31 am
X must be a matrix with one or two columns.

Last post by omidrostaei « Sat Feb 27, 2021 9:31 am

by omidrostaei » Sat Feb 27, 2021 9:31 am

0 Replies

833 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:31 am
The '''' algorithm does not handle bound constraints; switching to ''Trust-Region'' algorithm instead.

Last post by omidrostaei « Sat Feb 27, 2021 9:31 am

by omidrostaei » Sat Feb 27, 2021 9:31 am

0 Replies

649 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:31 am
The fittype, FT, specifies a curve but the data, X, is for a surface.

Last post by omidrostaei « Sat Feb 27, 2021 9:30 am

by omidrostaei » Sat Feb 27, 2021 9:30 am

0 Replies

659 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:30 am
The fittype, FT, specifies a surface but the data, X, is for a curve.

Last post by omidrostaei « Sat Feb 27, 2021 9:30 am

by omidrostaei » Sat Feb 27, 2021 9:30 am

0 Replies

657 Views

Last post by omidrostaei
Sat Feb 27, 2021 9:30 am

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