博文
能谱指数相互转化（IDL程序）
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Pro alpaha_corelate,vx=vx,vr=vr,vo=vo,a_ox,a_ro,a_rx
;+
;NAME:
; alpaha_corelate
;PURPOSE:
; known two alpaha in order to make sure the third alpaha
;CALLING SEQUENCE:
; alpaha_corelate,vx=vx,vr=vr,vo=vo,a_ox,a_ro,a_rx
;INPUT & OUTPUT:
; a_ox
; a_ro
; a_rx
;OPTIONAL KEY INPUT:
; vx --- X-ray frequency
; vr --- Radio frequency
; vo --- Optical frequency
;REVISION HISTORY:
; Original by DL.Wang,May-12-2007
;-
if n_params() lt 2 then begin
print,'Syntax - alpaha_corelate,a_ox,,a_ro,a_rx'
return
endif
nox=n_elements(a_ox)<1
nro=n_elements(a_ro)<1
nrx=n_elements(a_rx)<1
a=alog10(vx/vo)/alog10(vx/vr)
b=alog10(vo/vr)/alog(vx/vr)
;Check which two parameters are defined, and then determine the other
if (nox and nro) then begin
a_rx = a * a_ox + b * a_ro
endif
if (nrx and nro) then begin
a_ox = (a_rx - b * a_ro)/ a
endif
if (nrx and nox) then begin
a_ro = (a_rx - a * a_ox)/b
endif
end
https://blog.sciencenet.cn/blog-456360-658877.html
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