[R] training svm

David Meyer david.meyer at wu-wien.ac.at
Tue Feb 27 13:43:29 CET 2007


Hello (whoever you are),

your data looks problematic. What does

head(ne_span_data)

reveal?

BTW, svm() will not handle NA values.

Best
David

---------------------

Hello. I'm new to R and I'm trying to solve a classification problem. I have
a training dataset of about 40,000 rows and 50 columns. When I try to train
support vector machine, it gives me this error after a few seconds:

  Error in predict.svm(ret, xhold) : Model is empty!

This is the code I use:

  ne_span_data <- as.matrix(read.table('ne_span.data.R.txt', header=TRUE,
row.names='id'))
  library('e1071')
  svm_ne_span_model <- svm(NE_type ~ . , ne_span_data)

it gives me:
Error in predict.svm(ret, xhold) : Model is empty!

A line from the ne_span.data.R.txt file:
  svt OTHER N N I S 2 NA NA NA NA NA A NA NA 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 train-s1m2



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