| Name : R-timedelay
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| Version : 1.0.11
| Vendor : obs://build_opensuse_org/devel:languages:R
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| Release : lp156.2.1
| Date : 2024-06-24 14:09:28
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| Group : Development/Libraries/Other
| Source RPM : R-timedelay-1.0.11-lp156.2.1.src.rpm
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| Size : 0.12 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Time Delay Estimation for Stochastic Time Series of Gravitationally Lensed Quasars
|
Description :
We provide a toolbox to estimate the time delay between the brightness
time series of gravitationally lensed quasar images via Bayesian and
profile likelihood approaches. The model is based on a state-space
representation for irregularly observed time series data generated from
a latent continuous-time Ornstein-Uhlenbeck process. Our Bayesian
method adopts scientifically motivated hyper-prior distributions and a
Metropolis-Hastings within Gibbs sampler, producing posterior samples
of the model parameters that include the time delay. A profile
likelihood of the time delay is a simple approximation to the marginal
posterior distribution of the time delay. Both Bayesian and profile
likelihood approaches complement each other, producing almost identical
results; the Bayesian way is more principled but the profile likelihood
is easier to implement. A new functionality is added in version 1.0.9
for estimating the time delay between doubly-lensed light curves
observed in two bands. See also Tak et al. (2017)
< doi:10.1214/17-AOAS1027>, Tak et al. (2018)
< doi:10.1080/10618600.2017.1415911>, Hu and Tak (2020)
< arXiv:2005.08049>.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/R:/autoCRAN/15.6/x86_64 |
