{ "_id": "6a17746eacfb0bcc41d97e72", "Package": "T4transport", "Type": "Package", "Title": "Tools for Computational Optimal Transport", "Version": "0.1.9", "Authors@R": "person(\"Kisung\", \"You\", role = c(\"aut\", \"cre\"),email = \"kisung.you@outlook.com\",comment=c(ORCID=\"0000-0002-8584-459X\"))", "Description": "Transport theory has seen much success in many fields of\nstatistics and machine learning. We provide a variety of\nalgorithms to compute Wasserstein distance, barycenter, and\nothers. See Peyré and Cuturi (2019) \nfor the general exposition to the study of computational\noptimal transport.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "URL": "https://www.kisungyou.com/T4transport/", "RoxygenNote": "7.3.3", "RdMacros": "Rdpack", "SystemRequirements": "C++20", "VignetteBuilder": "knitr", "Repository": "https://kisungyou.r-universe.dev", "Date/Publication": "2026-05-27 20:17:50 UTC", "RemoteUrl": "https://github.com/kisungyou/t4transport", "RemoteRef": "HEAD", "RemoteSha": "b7a36aedc6b001434530521a78a821ca219aa5ed", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-05-27 22:40:04 UTC", "User": "root" }, "Author": "Kisung You [aut, cre] (ORCID: )", "Maintainer": "Kisung You ", "MD5sum": "51ee11426e6895568e7811ae987dca55", "_user": "kisungyou", "_type": "src", "_file": "T4transport_0.1.9.tar.gz", "_fileid": "ae9beffb2260b49ac3aa8b34105170a9fabe3f915942353844f96b3b8f192d7f", "_filesize": 5576826, "_sha256": "ae9beffb2260b49ac3aa8b34105170a9fabe3f915942353844f96b3b8f192d7f", "_created": "2026-05-27T22:40:04.000Z", "_published": "2026-05-27T22:47:10.806Z", "_distro": "noble", "_jobs": [ { "job": 78188735585, "time": 229, "config": "linux-devel-arm64", "r": "4.7.0", "check": "OK", "artifact": "7253618338" }, { "job": 78188735632, "time": 198, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7253611036" }, { "job": 78188735604, "time": 198, "config": "linux-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7253610869" }, { "job": 78188735589, "time": 166, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7253602853" }, { "job": 78188735603, "time": 130, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7253593518" }, { "job": 78188735621, "time": 268, "config": "macos-oldrel-x86_64", "r": "4.5.3", "check": "OK", "artifact": "7253628430" }, { "job": 78188735647, "time": 118, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7253590593" }, { "job": 78188735600, "time": 304, "config": "macos-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7253637620" }, { "job": 78187998623, "time": 339, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7253557446" }, { "job": 78188735562, "time": 179, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7253606163" }, { "job": 78188735685, "time": 293, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7253634871" }, { "job": 78188735590, "time": 203, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7253611960" }, { "job": 78188735591, "time": 235, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7253619918" } ], "_buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/kisungyou/t4transport", "_commit": { "id": "b7a36aedc6b001434530521a78a821ca219aa5ed", "author": "Kisung You ", "committer": "Kisung You ", "message": "alpha freed\n", "time": 1779913070 }, "_maintainer": { "name": "Kisung You", "email": "kisung.you@outlook.com", "login": "kisungyou", "twitter": "@kisung_you", "description": "", "uuid": 22312643, "orcid": "0000-0002-8584-459X" }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 2.10", "role": "Depends" }, { "package": "Rcpp", "role": "LinkingTo" }, { "package": "RcppArmadillo", "role": "LinkingTo" }, { "package": "Rcpp", "version": ">= 1.1.0", "role": "Imports" }, { "package": "Rdpack", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "ggplot2", "role": "Suggests" }, { "package": "mlbench", "role": "Suggests" } ], "_owner": "kisungyou", "_selfowned": true, "_usedby": 1, "_updates": [ { "week": "2025-24", "n": 2 }, { "week": "2025-29", "n": 2 }, { "week": "2025-32", "n": 1 }, { "week": "2025-37", "n": 3 }, { "week": "2025-38", "n": 1 }, { "week": "2025-41", "n": 1 }, { "week": "2025-46", "n": 7 }, { "week": "2025-49", "n": 1 }, { "week": "2025-50", "n": 2 }, { "week": "2025-52", "n": 2 }, { "week": "2026-02", "n": 4 }, { "week": "2026-05", "n": 1 }, { "week": "2026-21", "n": 1 }, { "week": "2026-22", "n": 1 } ], "_tags": [], "_stars": 7, "_contributors": [ { "user": "kisungyou", "count": 54, "uuid": 22312643 }, { "user": "kyound", "count": 1, "uuid": 73868887 } ], "_userbio": { "uuid": 22312643, "type": "user", "name": "Kisung You" }, "_downloads": { "count": 259, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/T4transport" }, "_devurl": "https://github.com/kisungyou/t4transport", "_pkgdown": "https://www.kisungyou.com/T4transport/", "_searchresults": 13, "_topics": [ "openblas", "cpp", "openmp" ], "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md", "extra/T4transport.html", "manual.pdf" ], "_homeurl": "https://github.com/kisungyou/t4transport", "_realowner": "kisungyou", "_cranurl": true, "_releases": [ { "version": "0.1.0", "date": "2020-10-09" }, { "version": "0.1.1", "date": "2022-09-03" }, { "version": "0.1.2", "date": "2023-04-11" }, { "version": "0.1.3", "date": "2025-05-29" }, { "version": "0.1.5", "date": "2025-11-13" }, { "version": "0.1.7", "date": "2025-12-22" }, { "version": "0.1.8", "date": "2026-01-11" } ], "_exports": [ "ecdfbary", "ecdfmed", "fbary14C", "fbary14Cdist", "fbary15B", "fbary15Bdist", "fiedler", "gaussbary1d", "gaussbarypd", "gaussmed1d", "gaussmedpd", "gaussvis2d", "gwbary", "gwdist", "histbary", "histbary14C", "histbary15B", "histdist", "histinterp", "histmed", "imagebary", "imagebary14C", "imagebary15B", "imagedist", "imageinterp", "imagemed", "img2measure", "ipot", "ipotD", "pwbary", "pwdist", "rbary23L", "rbaryGD", "rmedIRLS", "rmedWB", "sinkhorn", "sinkhornD", "swdist", "wassboot", "wasserstein", "wassersteinD" ], "_datasets": [ { "name": "digit3", "title": "MNIST Images of Digit 3", "object": "digit3", "file": "digit3.rda", "class": [ "list" ], "fields": [], "table": true, "tojson": true }, { "name": "digits", "title": "MNIST Images of All Digits", "object": "digits", "file": "digits.rda", "class": [ "list" ], "fields": [], "table": true, "tojson": true } ], "_help": [ { "page": "digit3", "title": "MNIST Images of Digit 3", "concept": [ "data" ], "topics": [ "digit3" ] }, { "page": "digits", "title": "MNIST Images of All Digits", "concept": [ "data" ], "topics": [ "digits" ] }, { "page": "ecdfbary", "title": "Barycenter of Empirical CDFs", "concept": [ "ecdf" ], "topics": [ "ecdfbary" ] }, { "page": "ecdfmed", "title": "Wasserstein Median of Empirical CDFs", "concept": [ "ecdf" ], "topics": [ "ecdfmed" ] }, { "page": "fbary14C", "title": "Fixed-Support Barycenter by Cuturi & Doucet (2014)", "concept": [ "fixed_centroid" ], "topics": [ "fbary14C", "fbary14Cdist" ] }, { "page": "fbary15B", "title": "Fixed-Support Barycenter by Benamou et al. (2015)", "concept": [ "fixed_centroid" ], "topics": [ "fbary15B", "fbary15Bdist" ] }, { "page": "fiedler", "title": "Compute the fiedler vector of a point cloud", "concept": [ "other" ], "topics": [ "fiedler" ] }, { "page": "gaussbary1d", "title": "Barycenter of Gaussian Distributions in \\mathbb{R}", "concept": [ "gaussian" ], "topics": [ "gaussbary1d" ] }, { "page": "gaussbarypd", "title": "Barycenter of Gaussian Distributions in \\mathbb{R}^p", "concept": [ "gaussian" ], "topics": [ "gaussbarypd" ] }, { "page": "gaussmed1d", "title": "Wasserstein Median of Gaussian Distributions in \\mathbb{R}", "concept": [ "gaussian" ], "topics": [ "gaussmed1d" ] }, { "page": "gaussmedpd", "title": "Wasserstein Median of Gaussian Distributions in \\mathbb{R}^p", "concept": [ "gaussian" ], "topics": [ "gaussmedpd" ] }, { "page": "gaussvis2d", "title": "Sampling from a Bivariate Gaussian Distribution for Visualization", "concept": [ "other" ], "topics": [ "gaussvis2d" ] }, { "page": "gwbary", "title": "Gromov-Wasserstein Barycenter", "concept": [ "gromov" ], "topics": [ "gwbary" ] }, { "page": "gwdist", "title": "Gromov-Wasserstein Distance", "concept": [ "gromov" ], "topics": [ "gwdist" ] }, { "page": "histbary", "title": "Barycenter of Histograms", "concept": [ "histogram" ], "topics": [ "histbary" ] }, { "page": "histbary14C", "title": "Barycenter of Histograms by Cuturi and Doucet (2014)", "concept": [ "histogram" ], "topics": [ "histbary14C" ] }, { "page": "histbary15B", "title": "Barycenter of Histograms by Benamou et al. (2015)", "concept": [ "histogram" ], "topics": [ "histbary15B" ] }, { "page": "histdist", "title": "Distance between Histograms", "concept": [ "histogram" ], "topics": [ "histdist" ] }, { "page": "histinterp", "title": "Interpolation between Histograms", "concept": [ "histogram" ], "topics": [ "histinterp" ] }, { "page": "histmed", "title": "Wasserstein Median of Histograms", "concept": [ "histogram" ], "topics": [ "histmed" ] }, { "page": "imagebary", "title": "Barycenter of Images", "concept": [ "image" ], "topics": [ "imagebary" ] }, { "page": "imagebary14C", "title": "Barycenter of Images according to Cuturi & Doucet (2014)", "concept": [ "image" ], "topics": [ "imagebary14C" ] }, { "page": "imagebary15B", "title": "Barycenter of Images according to Benamou et al. (2015)", "concept": [ "image" ], "topics": [ "imagebary15B" ] }, { "page": "imagedist", "title": "Wasserstein Distance between Two Images", "concept": [ "image" ], "topics": [ "imagedist" ] }, { "page": "imageinterp", "title": "Interpolation between Images", "concept": [ "image" ], "topics": [ "imageinterp" ] }, { "page": "imagemed", "title": "Wasserstein Median of Images", "concept": [ "image" ], "topics": [ "imagemed" ] }, { "page": "img2measure", "title": "Extract a discrete measure from a gray-scale image matrix", "concept": [ "other" ], "topics": [ "img2measure" ] }, { "page": "ipot", "title": "Wasserstein Distance via Inexact Proximal Point Method", "concept": [ "dist" ], "topics": [ "ipot", "ipotD" ] }, { "page": "pwbary", "title": "Procrustes-Wasserstein Barycenter", "concept": [ "free_centroid" ], "topics": [ "pwbary" ] }, { "page": "pwdist", "title": "Procrustes-Wasserstein Distance", "concept": [ "dist" ], "topics": [ "pwdist" ] }, { "page": "rbary23L", "title": "Free-Support Barycenter by von Lindheim (2023)", "concept": [ "free_centroid" ], "topics": [ "rbary23L" ] }, { "page": "rbarygd", "title": "Free-Support Wasserstein Barycenter by Barycentric-Projection Updates", "concept": [ "free_centroid" ], "topics": [ "rbaryGD" ] }, { "page": "rmedIRLS", "title": "Free-Support Median by IRLS", "concept": [ "free_centroid" ], "topics": [ "rmedIRLS" ] }, { "page": "rmedWB", "title": "Free-Support Median by Weiszfeld Update with Barycentric Projection", "concept": [ "free_centroid" ], "topics": [ "rmedWB" ] }, { "page": "sinkhorn", "title": "Wasserstein Distance via Entropic Regularization and Sinkhorn Algorithm", "concept": [ "dist" ], "topics": [ "sinkhorn", "sinkhornD" ] }, { "page": "swdist", "title": "Sliced Wasserstein Distance", "concept": [ "dist" ], "topics": [ "swdist" ] }, { "page": "wassboot", "title": "Wasserstein Distance Estimation with Boostrapping", "concept": [ "dist" ], "topics": [ "wassboot" ] }, { "page": "wasserstein", "title": "Wasserstein Distance via Linear Programming", "concept": [ "dist" ], "topics": [ "wasserstein", "wassersteinD" ] } ], "_readme": "https://github.com/kisungyou/t4transport/raw/HEAD/README.md", "_rundeps": [ "rbibutils", "Rcpp", "RcppArmadillo", "Rdpack" ], "_sysdeps": [ { "shlib": "liblapack", "package": "libopenblas0-pthread", "source": "openblas", "version": "0.3.26+ds-1ubuntu0.1", "name": "openblas", "homepage": "https://www.openblas.net/", "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)" }, { "shlib": "libblas", "package": "libopenblas0-pthread", "source": "openblas", "version": "0.3.26+ds-1ubuntu0.1", "name": "openblas", "homepage": "https://www.openblas.net/", "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)" }, { "shlib": "libstdc++", "package": "libstdc++6", "source": "gcc", "version": "14.2.0-4ubuntu2~24.04.1", "name": "c++", "homepage": "http://gcc.gnu.org/", "description": "GNU Standard C++ Library v3" }, { "shlib": "libgomp", "package": "libgomp1", "source": "gcc", "version": "14.2.0-4ubuntu2~24.04.1", "name": "openmp", "homepage": "http://gcc.gnu.org/", "description": "GCC OpenMP (GOMP) support library" } ], "_vignettes": [ { "source": "basic_compute_distance.Rmd", "filename": "basic_compute_distance.html", "title": "Computing the Wasserstein distance", "engine": "knitr::rmarkdown", "headings": [ "Introduction", "Toy example", "How to compute?", "Alternative input", "Disclaimer", "References" ], "created": "2025-07-19 02:37:04", "modified": "2025-09-11 00:57:42", "commits": 3 } ], "_score": 6.281260687055013, "_indexed": true, "_nocasepkg": "t4transport", "_universes": [ "kisungyou" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "0.1.9", "date": "2026-05-27T22:43:43.000Z", "distro": "noble", "arch": "aarch64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "287465b8f1c1d13b102e29f3559d60f352ceb54f83e4de4955b1d5984835a016", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.7.0", "os": "linux", "version": "0.1.9", "date": "2026-05-27T22:43:29.000Z", "distro": "noble", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "05d23ca8d0f51054d84ba135abb1323a389a6e148e1fad5e50adf5d6bd33fab9", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "linux", "version": "0.1.9", "date": "2026-05-27T22:43:25.000Z", "distro": "noble", "arch": "aarch64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "e0e61c3dec2c698a8143fcd6c58713adc76e3e5c11c41d4bc53e889c376ed631", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "linux", "version": "0.1.9", "date": "2026-05-27T22:43:35.000Z", "distro": "noble", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "ba373c3fc3897616f7efacc38fb77f2d61f35a88e884e37a8d74f01bfceec01b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.5.3", "os": "mac", "version": "0.1.9", "date": "2026-05-27T22:42:52.000Z", "arch": "aarch64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "52eaf26a9dc9e9ce535b8cd55434a39bb2e1fdbfd6f547b73904549c86632b9c", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.5.3", "os": "mac", "version": "0.1.9", "date": "2026-05-27T22:44:03.000Z", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "ed06d286feb44b0234bc68b2be51f59f3647c9066d200cf11d0b8f90e2d5d31b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "mac", "version": "0.1.9", "date": "2026-05-27T22:42:49.000Z", "arch": "aarch64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "00734a9cfac3e4bd0181078ad1c82c3881df0f48b05c284c7f71bd051a4f3bce", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "mac", "version": "0.1.9", "date": "2026-05-27T22:44:34.000Z", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "0041fe02acc97b552345c14ce74d271ec998e1b1293568667c3404997eede913", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "wasm", "version": "0.1.9", "date": "2026-05-27T22:43:26.000Z", "arch": "emscripten", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "3ff4d5a831574d49cbc7a8860fcdd121b6c2391190c41f3762df3f772e5ca64b", "status": "success", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.7.0", "os": "win", "version": "0.1.9", "date": "2026-05-27T22:42:57.000Z", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "681cfca540403fbc885e873e37192791c4447e494bb66c82b95b418f28516146", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.5.3", "os": "win", "version": "0.1.9", "date": "2026-05-27T22:42:29.000Z", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "2ea7b97492d136a6c91a41002ab2a4bdef1f7d5242b9c66578a80459d634923c", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" }, { "r": "4.6.0", "os": "win", "version": "0.1.9", "date": "2026-05-27T22:42:41.000Z", "arch": "x86_64", "commit": "b7a36aedc6b001434530521a78a821ca219aa5ed", "fileid": "2e8449d8606045a6a7fba6fe08fec4ba5d5bcca43b386a827b4024328ccd26da", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/kisungyou/actions/runs/26542795318" } ] }