  
  
  
     Dear R Users,
  
 Once the  function svm ( ) in library{e1071} like any function in R is run with  some variables including missing values ( NA ), it is needed to include  na.pass=TRUE arguement in function in order to deal with NAs. The  arguement na.omit is not desired, since it redueces the length of  variables.
  
 A problem when running the function svm   including na.pass, is that the result of fitting consists a part of  seemingly rigth fiitted values from the first of the length of fitted  values to somewhere in a series and another part of fitted values which  are NAs comes to the end of length of fitted values in a series.
  
  But we expect fitted values without any NA.
  
  How it can be corrected ?
  
  Thank you so much for help.
  Amir

