Undefined function 'libsvmread' for input arguments of type 'char'.

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kash
kash 2013-6-19
回答： Walter Roberson 2019-12-27
I get the following error when i use libsvm
Undefined function 'libsvmread' for input arguments of type 'char'.
i downloaded libsvm 3.17 and unzipped it and placed all content in my matlab path
in command prompt i used
[a,b] = libsvmread('heart-scale');
i get the above error
plz help

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回答（3 个）

Hossein Sangrody
Hossein Sangrody 2015-7-23
type "pathtool" in your MATLAB command window, add the path of the functions e.g. if your operating system is Windows, add "...\libsvm-3.17\windows" and then save. MATLAB can read them now. That's all.
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Christine Zarief
Christine Zarief 2018-2-23
I get this problem ,I tried a lot to solve it ,but it does not work ,could you please help me ?
Undefined function or variable 'libsvmread'.
Error in demo_libsvm_test1 (line 29) [heart_scale_label, heart_scale_inst] = libsvmread(fullfile(dirData,'heart_scale'));
Walter Roberson
Walter Roberson 2019-12-27
libsvmread() is part of the third-party libsvm tools. See https://www.mathworks.com/matlabcentral/answers/8704-i-can-not-use-libsvm#answer_12007

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