dustem_mpfit_run.pro
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FUNCTION dustem_mpfit_run,x,p_min,niter=niter_completed,_EXTRA=_extra
;+
; NAME:
; dustem_mpfit_run_vg
; PURPOSE:
; function used to fit dustem model with dustem_mpfit_sed
; CATEGORY:
; Dustem
; CALLING SEQUENCE:
; res=dustem_mpfit_run_vg(x,params[,_EXTRA=extra][,cc_sed=cc_sed][,/help])
; INPUTS:
; x = necessary for interface but unused
; params = Dustem Model parameters normalized to initial values
; OPTIONAL INPUT PARAMETERS:
; cc_sed = SED color correction factors
; _extra = extra parameters for the plot routine
; OUTPUTS:
; None
; OPTIONAL OUTPUT PARAMETERS:
; None
; ACCEPTED KEY-WORDS:
; help = If set, print this help
; COMMON BLOCKS:
; None
; SIDE EFFECTS:
; SED and model are plotted if !dustem_show_plot
; RESTRICTIONS:
; The dustem idl wrapper must be installed
; PROCEDURE:
; None
; EXAMPLES
; res=dustem_mpfit_run_vg(x,params[,_EXTRA=extra][,cc_sed=cc_sed][,/help])
; ODIFICATION HISTORY:
; Adapted to extinction and polarization by Vincent Guillet (IAS)
; Written by J.-Ph. Bernard
; see evolution details on the dustem cvs maintained at CESR
; Contact J.-Ph. Bernard (Jean-Philippe.Bernard@cesr.fr) in case of problems.
;-
;note that x is not used.
IF keyword_set(help) THEN BEGIN
doc_library,'dustem_mpfit_run'
sed=0.
goto,the_end
ENDIF
p_dim=p_min*(*(*!dustem_fit).param_init_values)
IF !run_ionfrac gt 0. THEN toto = dustem_create_ionfrac()
;RUN THE MODEL AND GET THE SPECTRUM
dustem_activate_plugins,p_dim/(*(*!dustem_fit).param_init_values),st ;st is an output...
st_model=dustem_read_all(!dustem_soft_dir)
chi2_sed = 0
chi2_ext = 0
chi2_qsed =0
chi2_used =0
chi2_qext =0
chi2_uext =0
rchi2_sed = 0
rchi2_ext = 0
rchi2_qsed =0
rchi2_used =0
rchi2_qext =0
rchi2_uext =0
wrchi2_sed = 0
wrchi2_ext = 0
wrchi2_qsed =0
wrich2_used =0
wrchi2_qext =0
wrich2_uext =0
n_sed = 0
n_ext = 0
n_qsed =0
n_used =0
n_qext =0
n_uext =0
win = 0
tagnames=tag_names(!dustem_data)
dustem_out = [0]
ind_data_tag=dustem_data_tag(count=count_data_tag)
FOR i_tag=0,count_data_tag-1 DO BEGIN
CASE tagnames(ind_data_tag(i_tag)) OF
'SED' : BEGIN
dustem_sed = dustem_compute_sed(p_dim,st,SED_spec)
chi2_sed = total(((*!dustem_data.sed).values-dustem_sed)^2/(*!dustem_data.sed).sigma^2)
n_sed = n_elements((*!dustem_data.sed).values)
rchi2_sed = chi2_sed / n_sed
wrchi2_sed = rchi2_sed * !fit_rchi2_weight.sed
message,"chi2 SED = "+strtrim(chi2_sed,2)+" rchi2 SED = "+strtrim(rchi2_sed,2),/continue;," weighted rchi2 SED=",wrchi2_sed
;print,'wl ',(*!dustem_data.sed).wav
;print,"Delta SED per wl: ",(*!dustem_data.sed).values-dustem_sed
;print,"error per wl: ",(*!dustem_data.sed).sigma
;print,"chi2 per wl: ",((*!dustem_data.sed).values-dustem_sed)^2/(*!dustem_data.sed).sigma^2
alpha = total(((*!dustem_data.sed).values*dustem_sed)/(*!dustem_data.sed).sigma^2) $
/ total(((*!dustem_data.sed).values)^2/(*!dustem_data.sed).sigma^2)
beta = total(((*!dustem_data.sed).values*dustem_sed)/(*!dustem_data.sed).sigma^2) $
/ total(dustem_sed^2/(*!dustem_data.sed).sigma^2)
print,"Best SED chi2 obtained if f_HI = ",alpha, " or if we multiply model by ",beta
;These two lines were put here so that the chi2 is updated everytime we plot
;Moving it to the bottom so that all chi2 are taken into account
; (*!dustem_fit).chi2=chi2_sed
; (*!dustem_fit).rchi2=rchi2_sed
dustem_out = [ dustem_out, dustem_sed ]
END
'EXT' : BEGIN
dustem_ext = dustem_compute_ext(p_dim,st,EXT_spec)
chi2_ext = total(((*!dustem_data.ext).values-dustem_ext)^2/(*!dustem_data.ext).sigma^2)
n_ext = n_elements((*!dustem_data.ext).values)
rchi2_ext = chi2_ext / n_ext
wrchi2_ext = rchi2_ext * !fit_rchi2_weight.ext
print,"chi2 EXT = ",chi2_ext," rchi2 EXT = ",rchi2_ext;," weighted rchi2 EXT=",wrchi2_ext
;print,"chi2 per wl: ",((*!dustem_data.ext).values-dustem_ext)^2/(*!dustem_data.ext).sigma^2
dustem_out = [ dustem_out, dustem_ext ]
END
'POLEXT': BEGIN
;Haven't investigated !run_circ=1 yet...
;---------------the procedure within this block has not been updated for a vert long time
IF !dustem_show_plot NE 0 and !run_circ then begin
win+=1
dustem_plot_circ,st,win=win,xr=[0.1,5],aligned=st_model.align.grains.aligned,yr=[-0.03,0.03]
endif
;--------------------------------------------------------------------------------------
IF !run_lin then begin
;compute_polext needs updating. It's been months.
dustem_polext = dustem_compute_polext(p_dim,st,POLEXT_spec,SPEXT_spec,dustem_fpolext,dustem_ext=dustem_ext)
;chi2_polext = total(((*!dustem_data.polext).values-dustem_polext)^2/(*!dustem_data.polext).sigma^2)
ENDIF
END
'QSED': BEGIN
toto = dustem_compute_stokes(p_dim,st,dustem_qsed,dustem_used,Q_spec,U_spec,PSI_spec,dustem_psi_em)
;taking care of the color correction for spass ; SHOULD NOT LEAVE THIS ON
;dustem_qsed(-1)=dustem_qsed(-2)
; testspass1 = ((*!dustem_data.qsed).filt_names)(-1) eq 'SPASS1'
; if testspass1 then dustem_qsed(-1)=dustem_qsed(-2)
;
chi2_qsed = total(((*!dustem_data.qsed).values-dustem_qsed)^2/(*!dustem_data.qsed).sigma^2)
n_qsed = n_elements((*!dustem_data.qsed).values)
rchi2_qsed = chi2_qsed / n_qsed
wrchi2_qsed = rchi2_qsed * !fit_rchi2_weight.qsed
dustem_out = [ dustem_out, dustem_qsed ] ; classic command
message,"chi2 QSED = "+strtrim(chi2_qsed,2)+" rchi2 QSED = "+strtrim(rchi2_qsed,2),/continue;," weighted rchi2 POLSED=",wrchi2_polsed
print,"chi2 per wl: ",((*!dustem_data.qsed).values-dustem_qsed)^2/(*!dustem_data.qsed).sigma^2
END
'USED': BEGIN
chi2_used = total(((*!dustem_data.used).values-dustem_used)^2/(*!dustem_data.used).sigma^2)
n_used = n_elements((*!dustem_data.used).values)
rchi2_used = chi2_used / n_used
wrchi2_used = rchi2_used * !fit_rchi2_weight.used
dustem_out = [ dustem_out, dustem_used] ; classic command
message,"chi2 USED = "+strtrim(chi2_used,2)+" rchi2 USED = "+strtrim(rchi2_used,2),/continue;," weighted rchi2 POLSED=",wrchi2_polsed
print,"chi2 per wl: ",((*!dustem_data.used).values-dustem_used)^2/(*!dustem_data.used).sigma^2
END
'POLSED': BEGIN
IF !run_pol and !run_lin THEN BEGIN
dustem_polsed = dustem_compute_polsed(p_dim,st,P_spec,SP_spec,dustem_polfrac,dustem_sed=dustem_sed)
ENDIF
END
;NB: CAN'T SEE THE NECESSITY
; 'PSI_EM' : BEGIN
;
; IF !run_pol and !run_lin THEN BEGIN
; degtorad = !pi/180
; if ~isa(dustem_used) or ~isa(dustem_qsed) then toto = dustem_compute_stokes(p_dim,st,dustem_qsed,dustem_used,Q_spec,U_spec,PSI_spec,dustem_psi_em)
; ENDIF
; END
;NB: CAN'T SEE THE NECESSITY
; 'POLFRAC': BEGIN ;We do not really need this block
;
; END
'QEXT': BEGIN ;UPDATED
toto = dustem_compute_stokext(p_dim,st,dustem_qext,dustem_uext,QEXT_spec,UEXT_spec,PSIEXT_spec,dustem_psi_ext)
chi2_qext =total(((*!dustem_data.qext).values-dustem_qext)^2/(*!dustem_data.qext).sigma^2)
n_qext = n_elements((*!dustem_data.qext).values)
rchi2_qext = chi2_qext / n_qext
wrchi2_qext = rchi2_qext * !fit_rchi2_weight.qext
dustem_out = [ dustem_out, dustem_qext] ; classic command
message,"chi2 QEXT = "+strtrim(chi2_qext,2)+" rchi2 QEXT = "+strtrim(rchi2_qext,2),/continue;," weighted rchi2 POLSED=",wrchi2_polsed
print,"chi2 per wl: ",((*!dustem_data.qext).values-dustem_qext)^2/(*!dustem_data.qext).sigma^2
END
;
'UEXT': BEGIN ;UPDATED
chi2_uext =total(((*!dustem_data.uext).values-dustem_uext)^2/(*!dustem_data.uext).sigma^2)
n_uext = n_elements((*!dustem_data.uext).values)
rchi2_uext = chi2_uext / n_uext
wrchi2_uext = rchi2_uext * !fit_rchi2_weight.uext
dustem_out = [ dustem_out, dustem_uext] ; classic command
message,"chi2 UEXT = "+strtrim(chi2_uext,2)+" rchi2 UEXT = "+strtrim(rchi2_uext,2),/continue;," weighted rchi2 POLSED=",wrchi2_polsed
print,"chi2 per wl: ",((*!dustem_data.uext).values-dustem_uext)^2/(*!dustem_data.uext).sigma^2
END
;NB: CAN'T SEE THE NECESSITY
; 'PSI_EXT' : BEGIN ;This block is present if PSI_EM data is to be shown but not the rest of the stokes parameters ?
;
; IF !run_pol and !run_lin THEN BEGIN
; degtorad = !pi/180
; if ~isa(dustem_uext) or ~isa(dustem_qext) then toto = dustem_compute_stokext(p_dim,st,dustem_qext,dustem_uext,QEXT_spec,UEXT_spec,PSIEXT_spec,dustem_psi_ext)
; ENDIF
; END
ELSE : ;Do nothing
ENDCASE
ENDFOR
;Plotting only every successful dustem run
if !dustem_iter.act NE !dustem_iter.prv or !dustem_iter.prv EQ 1 then begin
dustemwrap_plot,p_dim,st,dustem_sed,SED_spec,dustem_qsed,Q_spec,dustem_used,U_spec,dustem_polsed,P_spec,dustem_polfrac,SP_spec, dustem_psi_em, PSI_spec,_extra=_extra
if !dustem_iter.act EQ 1 then begin
!dustem_iter.prv=0
!dustem_iter.act=0
endif else !dustem_iter.prv=!dustem_iter.act
endif
DOF = n_elements(p_min)
total_chi2 = 0
total_rchi2 = 0
total_n = 0
if !fit_rchi2_weight.ext ne 0 then begin
total_n += n_ext
total_chi2 += chi2_ext
total_rchi2 += rchi2_ext
endif
if !fit_rchi2_weight.sed ne 0 then begin
total_n += n_sed
total_chi2 += chi2_sed
total_rchi2 += rchi2_sed
endif
if !run_pol then begin
if !fit_rchi2_weight.qsed ne 0 then begin
total_n += n_qsed
total_chi2 += chi2_qsed
total_rchi2 += rchi2_qsed
endif
if !fit_rchi2_weight.used ne 0 then begin
total_n += n_used
total_chi2 += chi2_used
total_rchi2 += rchi2_used
endif
if !fit_rchi2_weight.qext ne 0 then begin
total_n += n_qext
total_chi2 += chi2_qext
total_rchi2 += rchi2_qext
endif
if !fit_rchi2_weight.uext ne 0 then begin
total_n += n_uext
total_chi2 += chi2_uext
total_rchi2 += rchi2_uext
endif
endif
total_wchi2 = chi2_ext * !fit_rchi2_weight.ext $
+ chi2_sed * !fit_rchi2_weight.sed
if !run_pol then begin
total_wchi2 += $;chi2_polext * !fit_rchi2_weight.polext $
; + chi2_polsed * !fit_rchi2_weight.polsed $
; + chi2_polfrac * !fit_rchi2_weight.polfrac $
+ chi2_qsed * !fit_rchi2_weight.qsed $
+ chi2_used * !fit_rchi2_weight.used $
+ chi2_qext * !fit_rchi2_weight.qext $
+ chi2_uext * !fit_rchi2_weight.uext
endif
;Using this expression for now for the weighting.
(*!dustem_fit).chi2 = total_wchi2
(*!dustem_fit).rchi2 = total_wchi2/(total_n-DOF)
message,'======================================================================',/continue
print,"Total weighted chi2 driving mpfitfun = ", total_wchi2
print,"Nb of data points = ", total_n
print,"DOF = ", DOF
print,"Reduced chi2 EXT/SED/POLEXT/POLSED/POLFRAC",rchi2_ext,rchi2_sed;,rchi2_polext;,rchi2_polsed,rchi2_polfrac
print,"Weighted reduced chi2 EXT/SED/POLEXT/POLSED/POLFRAC",wrchi2_ext,wrchi2_sed;,wrchi2_polext;,wrchi2_polsed,wrchi2_polfrac
if !run_pol then print,"Weights",!fit_rchi2_weight.ext,!fit_rchi2_weight.sed $;,!fit_rchi2_weight.polext $;,!fit_rchi2_weight.polsed,!fit_rchi2_weight.polfrac $
else print,"Weights",!fit_rchi2_weight.ext,!fit_rchi2_weight.sed
print,"Mean weighted reduced chi2 = ", total_wchi2/(total_n-DOF)
print,"Unweighted reduced Total chi2 = ", total_chi2/(total_n-DOF)
print,"Unweighted mean reduced chi2 = ", total_rchi2/4*total_n/(total_n-DOF);total_rchi2/4*total_n/(total_n-DOF) original ; I do not understand this line. Maybe redo some computation.
message,'======================================================================',/continue
;print,"Total reduced chi2 = ", (wrchi2_sed+wrchi2_ext+wrchi2_polext+wrchi2_polsed+wrchi2_polfrac)/(n_sed+n_ext+n_polext+n_polsed+n_polfrac-DOF)
; Reduced chi2 is like if there were the same nb of data points for each curve
;print,"Mean reduced chi2 = ", (wrchi2_sed+wrchi2_ext+wrchi2_polext+wrchi2_polsed+wrchi2_polfrac) * total_n/(total_n-DOF)
; Plot size distribution
win+=1
xr=[0.3,5e3]
yr=[0.1,100]
;IF !dustem_show_plot NE 0 THEN dustem_plot_sdist,xr=xr,yr=yr,ps=filename,win=win;,/donotclose
; Suppress the artificial [0] at the beginning
dustem_out = dustem_out[1:*]
;IF defined(extra) THEN BEGIN
; IF keyword_set(extra.plot_it) THEN BEGIN
;; message,'params='+strtrim(p_min,2),/info,/continue
;; stop
; print,'dustem_mpfit_run_vg: Current parameters values:',p_dim
; ENDIF
;ENDIF
the_end:
RETURN,dustem_out
END