FUNCTION dustem_compute_polext ,p_dim,sti,_extra=extra,out_st=out_st,dustem_qext,dustem_uext,Q_ext,U_ext 

;CREATED AS A CONSEQUENCE OF THE INCLUSION OF THE PLUGINS


;written to homogonize DustEM

IF not keyword_set(sti) THEN BEGIN
  dustem_activate_plugins,p_dim/(*(*!dustem_fit).param_init_values)
  sti=dustem_run(p_dim)
ENDIF

If ptr_valid(*!dustem_plugin) THEN BEGIN
 ;ADDING PLUGIN TO SPECTRUM----------------
 ;if n_tags(!dustem_data.polext) gt 1 then begin
 for i=0L,n_tags(*!dustem_scope)-1 do begin
 if total(strsplit((*(*!dustem_scope).(i)),'+',/extract) eq 'ADD_POLEXT') then sti.polext.ext_tot+=(*(*!dustem_plugin).(i))
 endfor
 ;endif
 ;------------------------------------------
 
; ;=============================THIS BLOCK IS WRONG YOU HAVE TO CHANGE IT=============================
;  
;  
;  ;MODIFYING SPECTRUM VIA PLUGIN-------------- THIS BLOCK NEEDS TO BE UNDER THE DUSTEM_POLSED LINE 
; 
;  for i=0L,n_tags(*!dustem_scope)-1 do begin
; 
;  if total(strsplit((*(*!dustem_scope).(i)),'+',/extract) eq 'MODIFY_POLEXT') then begin
; 
;  ;making sure it's the stokes plugin that gets used here
; 
;  iidx=where(tag_names(*!dustem_scope) eq 'STEXT')
; 
; 
;  IF iidx eq i THEN BEGIN ;not sure about this condition but you get the spirit
; 
;  Q_ext=(*(*!dustem_plugin).(i))(0:n_elements((*(*!dustem_plugin).(i)))/2-1)
;  U_ext=(*(*!dustem_plugin).(i))(n_elements((*(*!dustem_plugin).(i)))/2:*)
;  dustem_qext=interpol(Q_ext,sti.polext.wav,(*!dustem_data.polext).wav)
;  dustem_uext=interpol(U_ext,sti.polext.wav,(*!dustem_data.polext).wav)
;  
;  endif 
;  endif
;  endfor
;  ;endif
;  ;-------------------------------------------
; ;=======================================================================================================

ENDIF

dustem_polext = interpol(sti.polext.ext_tot,sti.polext.wav,(*!dustem_data.polext).wav) 


return, dustem_polext



END