myVars<-c("Exam_year","Exam_service_code","Exam_province_code","Exam_city_code","Exam_county_code","Exam_service_time","Exam_fbirthday","Exam_fnationality","Exam_fedu_level","Exam_fjob","Exam_faccount_type","Exam_breed_history","Exam_live_birth_num" "Exam_height", "Exam_weight","Exam_bmi",, "Exam_marry_time","Exam_fage","Exam_fage_gp","Service_Area", "Exam_province_GDP" ,"Exam_City_Class","Exam_account_type","Exam_fbmi","pregnancy_age", "pregnancy_age.grp","fmarry_age","fmarry_age.grp" )
Error: unexpected string constant in "-c("Exam_year","Exam_service_code","Exam_province_code","Exam_city_code","Exam_county_code","Exam_service_time","Exam_fbirthday","Exam_fnationality","Exam_fedu_level","Exam_fjob","Exam_faccoun"
>