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dyn.pro
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dyn.pro
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;+
; Contains the dyn procedure
;
; :Author:
; Philippe Zarka
; Baptiste Cecconi
;
; :History:
; 2006/03/08: Last Edit
;-
;
;+
; Adjustment of dynamic range
; (Part of the Cassini-Kronos IDL library)
;-
pro DYN, tab,fracmin,fracmax, tabmin,tabmax
; Adjustment of dynamic range
tabmax=-1 & tabmin=-1
test=where(tab gt min(tab))
if test(0) eq -1 then begin
message,'Null dynamic range',/info
;stop
return
endif
test=float(tab(test))
dh=max(test)-min(test)
if dh eq 0 then begin
message,'Null dynamic range > min(tab)',/info
tabmin=min(tab) & tabmax=max(tab)
return
endif
dh=dh/1000.
h=histogram(float(test),min=min(test),max=max(test),binsize=dh)
xh=findgen(n_elements(h))*dh+min(test)
th=total(h) & nh=0
for i=0,n_elements(h)-1 do begin
nh=nh+h(i)
if nh le fracmin*th then tabmin=i
if nh le fracmax*th then tabmax=i
endfor
if tabmin eq -1 then tabmin=0
tabmin=xh(tabmin)
if tabmax eq -1 then tabmax=0
tabmax=xh(tabmax)
return
end