{ "_id": "6a1efab1b401979e7341882a", "Package": "stgam", "Title": "Spatially and Temporally Varying Coefficient Models Using\nGeneralized Additive Models", "Version": "1.2.1", "Authors@R": "c(\nperson(\"Lex\", \"Comber\", email = \"a.comber@leeds.ac.uk\", role = c(\"aut\", \"cre\")),\nperson(\"Paul\", \"Harris\", email = \"paul.harris@rothamsted.ac.uk\", role = c(\"ctb\")),\nperson(\"Gonzalo\", \"Irisarri\", email = \"jirisarr@uwyo.edu\", role = c(\"ctb\")),\nperson(\"Chris\", \"Brunsdon\", email = \"christopher.brunsdon@mu.ie\", role = c(\"ctb\"))\n)", "Author": "Lex Comber [aut, cre], Paul Harris [ctb], Gonzalo Irisarri\n[ctb], Chris Brunsdon [ctb]", "Maintainer": "Lex Comber ", "Description": "A framework for undertaking space and time varying\ncoefficient models (varying parameter models) using a\nGeneralized Additive Model (GAM) with smooths approach. The\nframework suggests the need to investigate for the presence and\nnature of any space-time dependencies in the data. It proposes\na workflow that creates and refines an initial space-time GAM\nand includes tools to create and evaluate multiple model forms.\nThe workflow sequence is to: i) Prepare the data by lengthening\nit to have a single location and time variables for each\nobservation. ii) Create all possible space and/or time models\nin which each predictor is specified in different ways in\nsmooths. iii) Evaluate each model via their AIC value and pick\nthe best one. iv) Create the final model. v) Calculate the\nvarying coefficient estimates to quantify how the relationships\nbetween the target and predictor variables vary over space,\ntime or space-time. vi) Create maps, time series plots etc. The\nnumber of knots used in each smooth can be specified directly\nor iteratively increased. This is illustrated with a climate\npoint dataset of the dry rain forest in South America. This\nbuilds on work in Comber et al (2024)\n and Comber et al (2004)\n.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.3.2", "Config/testthat/edition": "3", "URL": "https://github.com/lexcomber/stgam", "BugReports": "https://github.com/lexcomber/stgam/issues", "LazyData": "true", "VignetteBuilder": "knitr", "Config/pak/sysreqs": "libicu-dev", "Repository": "https://lexcomber.r-universe.dev", "Date/Publication": "2026-05-18 10:10:07 UTC", "RemoteUrl": "https://github.com/lexcomber/stgam", "RemoteRef": "HEAD", "RemoteSha": "ed77303303fa15f2b18dcd5582476ade96df1cf2", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-18 11:19:29 UTC", "User": "root" }, "MD5sum": "843e4ffdbbc0760250a8022d04cb279c", "_user": "lexcomber", "_type": "src", "_file": "stgam_1.2.1.tar.gz", "_fileid": "1abde4c96f88c2cd46eefc55f73d9b0b5716050d957b6cd9a544f1f33c505db8", "_filesize": 3962566, "_sha256": "1abde4c96f88c2cd46eefc55f73d9b0b5716050d957b6cd9a544f1f33c505db8", "_created": "2026-05-18T11:19:29.000Z", "_published": "2026-06-02T15:45:53.290Z", "_distro": "noble", "_jobs": [ { "job": 79111735254, "time": 174, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7056420231" }, { "job": 79111735566, "time": 179, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7056422218" }, { "job": 79111735153, "time": 110, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7056399720" }, { "job": 79111734723, "time": 104, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7056397573" }, { "job": 79111734053, "time": 259, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7056361921" }, { "job": 79111734395, "time": 139, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7362705662" }, { "job": 79111734860, "time": 130, "config": "windows-devel", "r": "4.7.0", "check": "OK", 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