How to Use libsvm in linux with Ubuntu (installation and test)

step_1 Download the original sources from website

1. you could click it or use the command wget
2. then you will get the file like following:
   

step_2 decompress the download file into “libsvm-3.25”

1. use the command tar -zxvf libsvm-3.25.tar.gz and you will get the following file
   

step_3 compile the source file into executable file

1. use sudo chmod 777 libsvm-3.25 to give the file power to compile
2. cd libsvm-3.25/
3. make
4. then you will see some executive files
   

step_4 now you could find a dataset to conduct your experiment

1. I test my work with data file heart_scale

2. use the command ./svm-train heart_scale(note that heart-scale and svm-train are in same path folder) to train the default svm model with heart_scale database, the results shows as follows:
   
   

3. Then use the command ./svm-predict heart_scale heart_scale.model heart_scale.predict to test the accuracy heart_scale.model. Note that owing to no file heart_scale.t in this folder, I JUST use the training database to make this test and got the following results:
   

Anyway, I just to say the process installing libsvm into my linux is correct. and I log it just to wish it could help more folks know about this awesome portable classication tools.