CODEWITHSUNDEEP
javawekalibsvm
innerfirexy
innerfirexy

Reputation: 55

Cannot use libsvm in weka 3.7.10 after install it from weka package manager, on Windows

guys

I installed weka 3.7.10 (with jre1.7 included), and installed libsvm via its package manager.

But when I use Explorer to open the data and try to choose a classifier, I found the "libSVM" under "classifiers -> functions" is grey and not usable (It chooseable actually, but when I choose it, the start button is disabled)

I checked the folder of the downloaded packages, and I can see the libsvm.jar in "C:\Users\qsmile\wekafiles\packages\LibSVM\lib".

So I add "C:\Users\qsmile\wekafiles\packages\LibSVM\lib\libsvm.jar" to the CLASSPATH environment variables, which is now ".;C:\Program Files (x86)\Java\jre7\lib\ext\QTJava.zip;C:\Users\qsmile\wekafiles\packages\LibSVM\lib\libsvm.jar", but it does not work.

And I edited the "RunWeka.ini" file under the weka installed directory, and modified the last line into "cp=%CLASSPATH%;C:\\Users\\qsmile\\wekafiles\\packages\\LibSVM\\lib\\libsvm.jar". This change is according to the trouble shooting part on http://weka.wikispaces.com/LibSVM. After that, when use "java weka.core.SystemInfo" command to test, I can see the property java.class.path correctly shows the libsvm.jar in the right path. But, when I try to choose libsvm among classifiers, it is still grey and does not work.

So, can anybody help me figure this out? Thanks a lot a lot a lot!

My OS: Windows 7 SP1

Upvotes: 2

Views: 2643

Answers (1)

Olivier Boudry
Olivier Boudry

Reputation: 805

I just installed both LibSVM and LibLinear on Windows 7 x64 using the package manager and it works for me.

Both LibLinear and LibSVM are grayed out when the dataset contains missing values. Did you try with a simple dataset not having any missing values like for example the Iris dataset?

Upvotes: 2

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