Coherent Forecast Combination for Linearly Constrained Multiple Time Series R package FoCo2 version 0.1.3 CRAN Task View: TimeSeries (https://CRAN.R-project.org/view=TimeSeries) Methods and tools designed to improve the forecast accuracy for a linearly constrained multiple time series, while fulfilling the linear/aggregation relationships linking the components (Girolimetto and Di Fonzo, 2024 <doi:10.48550/arXiv.2412.03429>). 'FoCo2' offers multi-task forecast combination and reconciliation approaches leveraging input from multiple forecasting models or experts and ensuring that the resulting forecasts satisfy specified linear constraints. In addition, linear inequality constraints (e.g., non-negativity of the forecasts) can be imposed, if needed. Software Depends: R (>= 3.4), Matrix, FoReco Imports: stats, cli, methods, quadprog, osqp Suggests: testthat (>= 3.0.0) Daniele Girolimetto <daniele.girolimetto@unipd.it> Comprehensive R Archive Network (CRAN) Daniele Girolimetto [aut, cre] (ORCID: <https://orcid.org/0000-0001-9387-1232>), Tommaso Di Fonzo [aut] (ORCID: <https://orcid.org/0000-0003-3388-7827>) GPL-3 2026-03-13 application/tgz https://CRAN.R-project.org/package=FoCo2 doi:10.32614/CRAN.package.FoCo2