Institut für Astronomie und AstrophysikAbteilung AstronomieSand 1, D-72076 Tübingen, Germany |
lssm_process
return a one dimensional LSSM model evenly time series state equation : x(t) = 'AR[p]_process' observation equation : y(t) = C*x(t)+noise , noise = N(0,lssmsig)
timing tools
lssm_process,time,rate,ar1=ar1,ar2=ar2 $ ,relaxation=relaxation,period=period $ ,lssmc=lssmc,lssmsig=lssmsig
time : time array of evenly binned lightcurve
none
a1 : if set, work with AR[1] process a2 : if set, work with AR[2] process relaxation : parameter value of the AR[1&2] process ; damping rate (in bins) period : parameter value of the AR[2] process ; period sig : parameter value of the AR[1&2] process ; variance of the dynamical white noise ( if not set, equal 1.0 ) c : parameter value of the AR[1&2] process ; influence in the mean (if not set, equal 0) lssmc : design matrix, C, who maps the unobservable dynamics to the observation. (y(t) = C*x(t) + noise) lssmsig : variance of the observable white noise component ( noise = N(0,sig)
rate : count rate array of the LSSM lightcurve
ar_rate : count rate array of the unobservable AR[p] lightcurve
none
none
AR stationary conditions
uses ar1_process, ar2_process procedures, and the idl-randomn function
lssm_process,time,rate,/ar2,relaxation=100,period=50, $ lssmc=2,lssmsig=3.5,ar_rate=ar_rate
Version 1.0, 1999.01.13, Sara Benlloch (IAAT) (benlloch@astro.uni-tuebingen.de)
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