[R] In svm(), how to connect quantitative prediction result to categorical result?

From: Li, Yunfei <yunfei_li_at_wsu.edu>
Date: Fri, 08 Apr 2011 17:35:26 -0700


Hi,

I am studying using SVM functions of e1071 package to do prediction, and I found during the training data are "factor" type, then svm.predict() can predict data directly by categories; but if response variables are "numerical", the predicted value from svm will be continuous quantitative numbers, then how can I connect these quantitative numbers to categories? (for example:in an example data set, the response variables are numerical and have two categories: 0 and 1, and the predicted value are continuous quantitative numbers from 0 to 1.3, how can I know which of them represent category 0 and which represent 1?)

Best,

Yunfei Li



Research Assistant
Department of Statistics &
School of Molecular Biosciences
Biotechnology Life Sciences Building 427 Washington State University
Pullman, WA 99164-7520
Phone: 509-339-5096
http://www.wsu.edu/~ye_lab/people.html

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