mots occurence moyenne id_formation source_field 0 renforc 1 0.11 8866 default 1 comptabilit 1 0.11 8866 default 2 fondamental 1 0.11 8866 default 3 semain 2 0.22 8866 default 4 programm 1 0.11 8866 default 5 def 1 0.11 8866 default 6 7 1 0.11 8866 default 7 publiqu 1 0.11 8866 default