gr := new(crfpp.Group)

e := gr.ReadFile("template", "train.txt")

if e!= nil {

fmt.Println(e)

return

}else {

fmt.Println("gr is ready")

}

e = gr.ProcessLearnData("model.txt", 1, 0.0001, 4, 10000 )

if e!= nil {

fmt.Println(e.Error())

}