Cannot access the function predict() in R2020b with statistics toolbox

I cannot access the function predict() that is introduced in R2018a.,

whereas 'Statistics and Machine Learning Toolbox' is installed.

Details are as follows:

>> ver
---------------------------------------------------------------------------------------------------
MATLAB version: 9.9.0.1467703 (R2020b)
MATLAB license number: ********
Operating system: Mac OS X  Version: 10.15.7 Build: 19H2 
Java version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
---------------------------------------------------------------------------------------------------
MATLAB                                                version 9.9           (R2020b)
Curve Fitting Toolbox                                 version 3.5.12        (R2020b)
Signal Processing Toolbox                             version 8.5           (R2020b)
Statistics and Machine Learning Toolbox               version 12.0          (R2020b)
Wavelet Toolbox                                       version 5.5           (R2020b)

>> license('checkout','statistics_toolbox')

ans =

     1

However, '>> which predict -all' returns negative.

Who can tell me why I cannot use predict() function?

'predict.m' file is found in MATLAB_R2020b.app > toolbox > stats > classreg > +classreg > +learning > +svmutils > +gpu,

and the code is shown as '% GPU entry point for the SVM predict mex function.'.

Answer 1

[Ameer Hamza]

How are you calling the predict()? Note that in statistical and ML toolbox, predict() is defined as a method, rather than an independent function. So it will not automatically be shown by which -all (It will be shown if the object containing this method is loaded in the workspace). It will only be called if the first input is a model object, e.g., linear model from the toolbox.

[Pistachio]

Thank you for your quick response.

I tried to use predict() function as an independent function.

I understood it's a reason.

Thank you.

Answer 2

[Raymond Norris]

Hi Pistachio,

predict ships in the System Identification Toolbox.

Thanks,

Raymond

[Pistachio]

Thank you for your response.

Answer 3

[Walter Roberson]

See https://www.mathworks.com/matlabcentral/answers/427309-classify-requires-at-least-3-arguments#answer_445205