https://ischlo.r-universe.devRecent package updates in ischloR-universehttps://github.com/ischlo.pnghttps://ischlo.r-universe.devThu, 04 Sep 2025 09:28:59 GMTivann.schlosser.19@ucl.ac.uk (Ivann Schlosser)Building on top of the 'RcppArmadillo' linear algebra functionalities to do fast spatial interaction models in the context of urban analytics, geography, transport modelling. It uses the Newton root search algorithm to determine the optimal cost exponent and can run country level models with thousands of origins and destinations. It aims at implementing an easy approach based on matrices, that can originate from various routing and processing steps earlier in an workflow. Currently, the simplest form of production, destination and doubly constrained models are implemented. Schlosser et al. (2023) <doi:10.48550/arXiv.2309.02112>.https://github.com/r-universe/ischlo/actions/runs/28644607975Thu, 04 Sep 2025 09:28:59 GMTcppSim0.2successhttps://ischlo.r-universe.devhttps://github.com/ischlo/cppsimgetting_started_2.Rmdgetting_started_2.htmlGetting started2024-05-13 22:31:462025-08-29 14:00:11gravity_model.Rmdgravity_model.htmlGravity model2024-07-19 16:23:122025-04-17 19:36:26