Undefined function 'seqminopt' for input arguments of type 'function_handle'.

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poprostuJanek 2013-10-14

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https://ww2.mathworks.cn/matlabcentral/answers/90161-undefined-function-seqminopt-for-input-arguments-of-type-function_handle

回答： susan 2016-12-13

采纳的回答： Jan

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Hi

I'm using svm library especially svmtrain function. I get some error. When I use svmtrain function directly

   svmStruct = svmtrain(xdata,names,'kernel_function','polynomial','showplot',true);

then everything works just fine (Matlab find function without any problems, functions returns proper results) BUT when I write my own function and use some other functions from that package like for example seqminopt then I get information

Undefined function 'seqminopt' for input arguments of type 'function_handle'.

"seqminopt" is a function which "svmtrain" calls without any problem but I cannot calls it directly ? Why I get such error ? Do you know any good Matlab tutorial on the internet which explain how to implement , management , include , check etc. packages and libraries ?

Please help me :)

Jan

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Answer 1

Jan 2013-10-14

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/90161-undefined-function-seqminopt-for-input-arguments-of-type-function_handle#answer_99616

I guess that seqminopt is located in a folder called /private, which is a subfolder of the path of svmtrain. Then svmtrain can see it, but no function from another folder. This is the intention of /private subfolders.