Hi RS,
I understand that you are encountering an error related to the 'statsfminbx' function while performing maximum likelihood estimation of factor loading, and you want to know what 'statsfminbx' indicates.
- The 'statsfminbx' function is not a standard MATLAB function, and it appears to be a custom or internal function used in specific toolboxes or older versions of MATLAB. It might have been used for optimization purposes, particularly for constrained optimization problems.
- The error message "Undefined function 'statsfminbx' for input arguments of type 'cell'" suggests that MATLAB cannot find the function definition for 'statsfminbx', and it is being called with input arguments of type 'cell'.
- One possible reason for this error is that the function might have been part of an older or custom toolbox that is not currently installed or accessible in your MATLAB environment. Alternatively, it might have been replaced by another function in newer MATLAB versions.
- For maximum likelihood estimation, you can use MATLAB's built-in optimization functions such as "fmincon" for constrained optimization or "fminunc" for unconstrained optimization. These functions are part of the Optimization Toolbox and can be used to estimate parameters by maximizing the likelihood function.
- To resolve the issue, you may need to update your code to use these standard MATLAB functions instead of 'statsfminbx'. Ensure that the input arguments are compatible with the chosen optimization function.
Refer to the documentation of "fmincon" for constrained optimization: https://www.mathworks.com/help/optim/ug/fmincon.html
Refer to the documentation of "fminunc" for unconstrained optimization: https://www.mathworks.com/help/optim/ug/fminunc.html
Hope this helps!
