Error in optimset function

I am taking Machine Learning course from Coursera. When I run the code in MATLAB(R2017), I am getting error in some optimset function. Error is copied below:

Error using optimset (line 255) Unrecognized parameter name 'GradObj'. Please see the optimset reference page in the documentation for a list of acceptable option parameters. Link to reference page.

How do I resolve this issue.

Regards Ridhima Kumar

[KSSV]

Show us the code....so that you can get help.

[Ridhima Kumar]

That is a pre written code by Coursera

[KSSV]

You check with the version course era people used and your version....

Answer 1

[Walter Roberson]

GradObj is not a valid option to optimset() unless a license is present for one of the following products:

Optimization Toolbox
Curve Fitting Toolbox
Statistics and Machine Learning Toolbox
Computer Vision Toolbox
System Identification Toolbox

[Ridhima Kumar]

Thanks Walter. I tried the code after removing GradObj argument. It worked.

[Animesh Animesh]

what exactly did u remove ? options = optimset( 'GradObj', 'on','MaxIter', 400); the above written line of code is causing trouble. what exactly should i do?

[Walter Roberson]

Which optimization routine are you trying to call?

[Nayana Sharma]

Hi Animesh, you can remove the parameter GradObj and its value 'on' from the list of parameters for optimset function, and the code runs without error. i.e. just use options = optimset('MaxIter', 400);

Hope this helps.