{ "_id": "6a155e1facfb0bcc41d5fac3", "Package": "spheresmooth", "Title": "Piecewise Geodesic Smoothing for Spherical Data", "Version": "0.1.3", "Description": "Fitting a smooth path to a given set of noisy spherical\ndata observed at known time points. It implements a piecewise\ngeodesic curve fitting method on the unit sphere based on a\nvelocity-based penalization scheme. The proposed approach is\nimplemented using the Riemannian block coordinate descent\nalgorithm. To understand the method and algorithm, one can\nrefer to Bak, K. Y., Shin, J. K., & Koo, J. Y. (2023)\n for the case of order 1.\nAdditionally, this package includes various functions necessary\nfor handling spherical data.", "Authors@R": "c(person(given = \"Jae-Hwan\",\nfamily = \"Jhong\",\nrole = c(\"aut\"),\nemail = \"jjh25@cbnu.ac.kr\",\ncomment = c(ORCID = \"0000-0003-2266-4986\", \"Chungbuk National University\")),\nperson(given = \"Ja-Yong\",\nfamily = \"Koo\",\nrole = c(\"aut\"),\nemail = \"jykoo@korea.ac.kr\",\ncomment = \"Korea University\"),\nperson(given = \"Seyoung\",\nfamily = \"Lee\",\nrole = c(\"aut\"),\nemail = \"20210861@sungshin.ac.kr\",\ncomment = \"Sungshin Women's University\"),\nperson(given = \"Kwan-Young\",\nfamily = \"Bak\",\nrole = c(\"aut\", \"cre\", \"cph\"),\nemail = \"kybak@sungshin.ac.kr\",\ncomment = c(ORCID = \"0000-0002-4541-160X\", \"Sungshin Women's University\")))", "License": "GPL (>= 2)", "Encoding": "UTF-8", "LazyData": "true", "RoxygenNote": "7.3.2", "URL": "https://kybak90.github.io/spheresmooth/,\nhttps://github.com/kybak90/spheresmooth", "BugReports": "https://github.com/kybak90/spheresmooth/issues", "Repository": "https://kybak90.r-universe.dev", "Date/Publication": "2024-12-06 17:50:11 UTC", "RemoteUrl": "https://github.com/kybak90/spheresmooth", "RemoteRef": "HEAD", "RemoteSha": "bf7c39b79c11644567ee2e074a4737e5c39e7150", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-26 08:44:02 UTC", "User": "root" }, "Author": "Jae-Hwan Jhong [aut] (ORCID: ,\nChungbuk National University),\nJa-Yong Koo [aut] (Korea University),\nSeyoung Lee [aut] (Sungshin Women's University),\nKwan-Young Bak [aut, cre, cph] (ORCID:\n, Sungshin Women's\nUniversity)", "Maintainer": "Kwan-Young Bak ", "MD5sum": "e147464691d115772f7067ba3746c65f", "_user": "kybak90", "_type": "src", "_file": "spheresmooth_0.1.3.tar.gz", "_fileid": "2996cb51118cdf866a79c5f7199d59720e09b5af33b7bca6c5ffaad2acf4a615", "_filesize": 272732, "_sha256": "2996cb51118cdf866a79c5f7199d59720e09b5af33b7bca6c5ffaad2acf4a615", "_created": "2026-05-26T08:44:02.000Z", "_published": "2026-05-26T08:47:27.027Z", "_distro": "noble", "_jobs": [ { "job": 77838544503, "time": 125, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7212654608" }, { "job": 77838544431, "time": 125, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7212654759" }, { "job": 77838544453, "time": 178, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7212657945" }, { "job": 77838544473, "time": 132, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7212646250" }, { "job": 77838085866, "time": 163, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7212613188" }, { "job": 77838544533, "time": 134, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7212657065" }, { "job": 77838544484, "time": 95, "config": "windows-devel", "r": "4.7.0", "check": "OK", 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"_releases": [ { "version": "0.1.0", "date": "2024-04-18" }, { "version": "0.1.3", "date": "2024-12-06" } ], "_exports": [ "calculate_loss", "cartesian_to_spherical", "cross", "dot", "edp", "exp_map", "geodesic", "geodesic_lower", "knots_quantile", "norm2", "normalize", "normalize_lower", "penalized_linear_spherical_spline", "piecewise_geodesic", "spherical_dist", "spherical_to_cartesian" ], "_datasets": [ { "name": "apw_spherical", "title": "A polar wander dataset", "object": "apw_spherical", "class": [ "matrix", "array" ], "fields": [ "time", "latitude", "longitude" ], "rows": 31, "table": true, "tojson": true }, { "name": "goni_spherical", "title": "A tropical cyclone dataset", "object": "goni_spherical", "class": [ "matrix", "array" ], "fields": [ "time", "latitude", "longitude" ], "rows": 69, "table": true, "tojson": true } ], "_help": [ { "page": "apw_spherical", "title": "A polar wander dataset", "topics": [ "apw_spherical" ] }, { "page": "calculate_loss", "title": "Calculate Loss Function", "topics": [ "calculate_loss" ] }, { "page": "cartesian_to_spherical", "title": "Convert Cartesian coordinates to spherical coordinates", "topics": [ "cartesian_to_spherical" ] }, { "page": "cross", "title": "Compute the cross product of two vectors", "topics": [ "cross" ] }, { "page": "dot", "title": "Compute the dot product of two vectors", "topics": [ "dot" ] }, { "page": "edp", "title": "Compute the equal-distance projection of a point onto the xy plane", "topics": [ "edp" ] }, { "page": "exp_map", "title": "Compute the exponential map on the unit sphere.", "topics": [ "exp_map" ] }, { "page": "geodesic", "title": "Compute the value of the geodesic curve connecting two points on the unit sphere for a given set of time points t", "topics": [ "geodesic" ] }, { "page": "geodesic_lower", "title": "Compute the value of the geodesic curve connecting two points on the unit sphere for a given time point t", "topics": [ "geodesic_lower" ] }, { "page": "goni_spherical", "title": "A tropical cyclone dataset", "topics": [ "goni_spherical" ] }, { "page": "knots_quantile", "title": "Generate knots for the piecewise geodesic curve based on the quantiles", "topics": [ "knots_quantile" ] }, { "page": "norm2", "title": "Compute the L2 norm (Euclidean norm) of a vector", "topics": [ "norm2" ] }, { "page": "normalize", "title": "Normalize a matrix row-wise", "topics": [ "normalize" ] }, { "page": "normalize_lower", "title": "This function normalizes the the input vector v by dividing its L2 norm (Euclidean norm).", "topics": [ "normalize_lower" ] }, { "page": "penalized_linear_spherical_spline", "title": "Penalized Linear Spherical Spline", "topics": [ "penalized_linear_spherical_spline" ] }, { "page": "piecewise_geodesic", "title": "Piecewise Geodesic", "topics": [ "piecewise_geodesic" ] }, { "page": "spheresmooth", "title": "Piecewise Geodesic Smoothing for Spherical Data", "topics": [ "spheresmooth" ] }, { "page": "spherical_dist", "title": "Calculate spherical distance between two vectors", "topics": [ "spherical_dist" ] }, { "page": "spherical_to_cartesian", "title": "Convert spherical coordinates to Cartesian coordinates", "topics": [ "spherical_to_cartesian" ] } ], "_readme": "https://github.com/kybak90/spheresmooth/raw/HEAD/README.md", "_rundeps": [], "_score": 2.6989700043360187, "_indexed": true, "_nocasepkg": "spheresmooth", "_universes": [ "kybak90" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "0.1.3", "date": "2026-05-26T08:46:10.000Z", "distro": "noble", "commit": "bf7c39b79c11644567ee2e074a4737e5c39e7150", "fileid": "df6da18985e9b47e361d7508f67553ff959b787010d4b6c5aefe62aaccefad02", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kybak90/actions/runs/26441848299" }, { "r": "4.6.0", "os": "linux", "version": "0.1.3", "date": "2026-05-26T08:46:10.000Z", "distro": "noble", "commit": "bf7c39b79c11644567ee2e074a4737e5c39e7150", "fileid": 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