main.go

package main

//[...]

func main() {
  //[...]
  classes := distinct(getCollum(records, len(records[0])-1))
  
  var train [][]string
	var test [][]string
  
	//Percent
	p := float32(0.7)
  
	//For each class, get 70% of lines
	for i := range classes {
    [...]
	}
}