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exposureEM

Combined-Exposure Models by EM and Marquardt Optimization

Fits general two-component combined-exposure models for binary event histories when the event setting is not observed. The observed binary event is represented as the union of two latent component-specific binary events. Known exposure proportions enter as offsets. Parameters can be estimated by expectation-maximization, direct Marquardt-damped Newton-Raphson maximization of the observed likelihood, or a hybrid that uses several expectation-maximization iterations before direct optimization. Uncertainty is estimated with Louis' formula for the expectation-maximization estimator and the inverse observed Hessian for direct and hybrid fits. Complementary log-log, logit, and log component links are available for all three estimation methods.

Versions across snapshots

VersionRepositoryFileSize
0.3.0 rolling linux/jammy R-4.5 exposureEM_0.3.0.tar.gz 128.5 KiB
0.3.0 rolling linux/noble R-4.5 exposureEM_0.3.0.tar.gz 128.4 KiB
0.3.0 rolling source/ R- exposureEM_0.3.0.tar.gz 46.9 KiB
0.3.0 latest linux/jammy R-4.5 exposureEM_0.3.0.tar.gz 128.5 KiB
0.3.0 latest linux/noble R-4.5 exposureEM_0.3.0.tar.gz 128.4 KiB
0.3.0 latest source/ R- exposureEM_0.3.0.tar.gz 46.9 KiB
0.3.0 2026-04-23 source/ R- exposureEM_0.3.0.tar.gz 0 B

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