Error in optimset function

2017 10 24
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更新时间：2018 11 20
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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

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KSSV
KSSV 2017-10-24
Show us the code....so that you can get help.
Ridhima Kumar
Ridhima Kumar 2017-10-24
That is a pre written code by Coursera
KSSV
KSSV 2017-10-24
You check with the version course era people used and your version....

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Walter Roberson
Walter Roberson 2017-10-24

0 个投票

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

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Ridhima Kumar
Ridhima Kumar 2017-10-24
Thanks Walter. I tried the code after removing GradObj argument. It worked.
Animesh Animesh
Animesh Animesh 2018-10-22
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
Walter Roberson 2018-10-22
Which optimization routine are you trying to call?
Nayana Sharma
Nayana Sharma 2018-11-20
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.

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