How to use svmpredict (libsvm)

20 views (last 30 days)
Hey,
I'm trying to use libsvm in Matlab, but I am a bit confused regarding the svmpredict() function. The first input to it, is called testing_label_vector. As I understand it, that would be the labels of the testing data, but that doesn't really make sense, since that is what you are trying to predict. Can someone help me clarify what this input should be?
  1 Comment
Vahid Moradi
Vahid Moradi on 23 Feb 2014
Hi,I need using method libsvm and explain about libsvm'parameters

Sign in to comment.

Accepted Answer

Jakob Sørensen
Jakob Sørensen on 10 Mar 2014
Edited: Jakob Sørensen on 10 Mar 2014
For further reference I figured it out myself. The testing_label_vector can be added to calculate the accuracy of the prediction. If you don't have it, a zero vector of the correct size should be fine. The reported accuracy will then of course not hold though.
P.S. I know it's lame accepting my own answer, but I don't like unresolved issues :-)
  2 Comments
Walter Roberson
Walter Roberson on 23 May 2015
jack mm commented "it is correct"
Almost Artsy
Almost Artsy on 18 Mar 2019
my svmpredict give me 0x0 matrix output. can you help me solve this problem?

Sign in to comment.

More Answers (0)

Categories

Find more on Statistics and Machine Learning Toolbox in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!