Problem in using smooth function in App Designer

Hello guys,

I have a problem with MATLAB App Designer. I've written a code that smooths data using 'Smooth response data' in the main MATLAB software. However, when I use it in App Designer, App Designer recognizes the smooth function as 'Backward recursion of diffuse state-space models'. I don't know how to solve this problem.

I would be very thankful if you could help me.

[Walter Roberson]

Note that code generation is not supported for smooth()

[Mojtaba]

So how can I smooth my data in it?

Answer 1

[Gojo]

Hey Mojtaba

It appears that the "smooth" function you were using is being overshadowed by another function with the same name. Since the function you intend to use would be a basic function, you can easily find alternatives for it.

1. You could use the "smoothdata" function to achieve the same functionality. You can refer to the following documentation: https://www.mathworks.com/help/matlab/ref/smoothdata.html
2. You can also find several implementations of the "smooth" function over the File Exchange Submissions. Check out the following submission for smoothing 1D data: https://www.mathworks.com/matlabcentral/fileexchange/66099-smoothing-1d-data-by-moving-different-filter-shapes?s_tid=srchtitle
3. For adding a custom implementation of data smoothing, please have a look at the following documentation: https://in.mathworks.com/help/matlab/data_analysis/data-smoothing-and-outlier-detection.html?s_tid=answers_rc2-1_p4_MLT

I hope this helps!

[Mojtaba]

Thank you so much for your help. I tried to use smoothdata() but did not work correctly for me.

[Gojo]

What issue were you facing with smoothdata() ?

The smooth() function can be easily implemented by a moving average filter and there would be various implementations available to choose from FEX submissions. If not, could you share the exact issue you are facing? Maybe you could attach a part of your code so that I could reproduce it at my end.