https://qnnhu.r-universe.devRecent package updates in qnnhuR-universehttps://github.com/qnnhu.pnghttps://qnnhu.r-universe.devWed, 20 May 2026 22:23:52 GMTnqnhu2209@gmail.com (Quynh Nguyen)Provides likelihood-based inference for Gaussian and Student-t copula models for univariate count time series. Supports Poisson, negative binomial, binomial, beta-binomial, and zero-inflated marginals with ARMA dependence structures. Includes simulation, maximum-likelihood estimation, residual diagnostics, and predictive inference. Implements Time Series Minimax Exponential Tilting (TMET) <doi:10.1016/j.csda.2026.108344>, an adaptation of minimax exponential tilting of Botev (2017) <doi:10.1111/rssb.12162>. Also provides a linear-cost implementation of the Geweke–Hajivassiliou–Keane (GHK) simulator following Masarotto and Varin (2012) <doi:10.1214/12-EJS721>, and the Continuous Extension (CE) approximation of Nguyen and De Oliveira (2025) <doi:10.1080/02664763.2025.2498502>. The package follows the S3 design philosophy of 'gcmr' but is developed independently.https://github.com/r-universe/qnnhu/actions/runs/27810442791Wed, 20 May 2026 22:23:52 GMTgctsc0.2.4successhttps://qnnhu.r-universe.devhttps://github.com/qnnhu/gctsc