{ "_id": "6a1022d1acfb0bcc41c8d309", "Type": "Package", "Package": "gratis", "Title": "Generating Time Series with Diverse and Controllable\nCharacteristics", "Version": "1.0.8", "Authors@R": "c(\nperson(\"Yanfei\", \"Kang\", , \"yanfeikang@buaa.edu.cn\", role = \"aut\",\ncomment = c(ORCID = \"0000-0001-8769-6650\")),\nperson(\"Feng\", \"Li\", , \"feng.li@gsm.pku.edu.cn\", role = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0002-4248-9778\")),\nperson(\"Rob\", \"Hyndman\", , \"rob.hyndman@monash.edu\", role = \"aut\",\ncomment = c(ORCID = \"0000-0002-2140-5352\")),\nperson(\"Mitchell\", \"O'Hara-Wild\", , \"mail@mitchelloharawild.com\", role = \"ctb\",\ncomment = c(ORCID = \"0000-0001-6729-7695\")),\nperson(\"Bocong\", \"Zhao\", , \"bocongzhao@163.com\", role = \"ctb\",\ncomment = c(ORCID = \"0000-0001-8434-9047\"))\n)", "Description": "Generates synthetic time series based on various\nunivariate time series models including MAR and ARIMA\nprocesses. Kang, Y., Hyndman, R.J., Li, F.(2020)\n.", "License": "GPL-3", "URL": "https://github.com/ykang/gratis", "BugReports": "https://github.com/ykang/gratis/issues/", "VignetteBuilder": "knitr", "Config/testthat/edition": "3", "Encoding": "UTF-8", "LazyLoad": "yes", "NeedsCompilation": "no", "RoxygenNote": "7.3.1", "Repository": "https://ykang.r-universe.dev", "Date/Publication": "2026-05-14 02:35:15 UTC", "RemoteUrl": "https://github.com/ykang/gratis", "RemoteRef": "HEAD", "RemoteSha": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "Packaged": { "Date": "2026-05-14 04:54:26 UTC", "User": "root" }, "Author": "Yanfei Kang [aut] (ORCID: ),\nFeng Li [aut, cre] (ORCID: ),\nRob Hyndman [aut] (ORCID: ),\nMitchell O'Hara-Wild [ctb] (ORCID:\n),\nBocong Zhao [ctb] (ORCID: )", "Maintainer": "Feng Li ", "MD5sum": "90fe2bf0fa1f0710de64621dc8d62542", "_user": "ykang", "_type": "src", "_file": "gratis_1.0.8.tar.gz", "_fileid": "3e9b1a1e182819f14d65ad81fafc953781a48b533c2cce49e29ec71811d8ce9b", "_filesize": 1744962, "_sha256": "3e9b1a1e182819f14d65ad81fafc953781a48b533c2cce49e29ec71811d8ce9b", "_created": "2026-05-14T04:54:26.000Z", "_published": "2026-05-22T09:33:05.546Z", "_distro": "noble", "_jobs": [ { "job": 77353362156, "time": 189, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "6987647234" }, { "job": 77353362244, "time": 205, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "6987467920" }, { "job": 77353362096, "time": 214, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "6987463917" }, { "job": 77353362406, "time": 199, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "6987458742" }, { "job": 77353361356, "time": 272, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "6987430437" }, { "job": 77353361376, "time": 146, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7157351057" }, { "job": 77353361857, "time": 128, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "6987453582" }, { "job": 77353361948, "time": 148, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "6987456911" }, { "job": 77353362004, "time": 131, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "6987454102" } ], "_buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/ykang/gratis", "_commit": { "id": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "author": "Feng Li ", "committer": "GitHub ", "message": "Correct text formatting in README.md\n\nFix formatting issues in README.md.", "time": 1778726115 }, "_maintainer": { "name": "Feng Li", "email": "feng.li@gsm.pku.edu.cn", "orcid": "0000-0002-4248-9778" }, "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.5.0", "role": "Depends" }, { "package": "doRNG", "role": "Imports" }, { "package": "dplyr", "role": "Imports" }, { "package": "foreach", "role": "Imports" }, { "package": "forecast", "version": ">= 8.16", "role": "Imports" }, { "package": "GA", "role": "Imports" }, { "package": "generics", "role": "Imports" }, { "package": "magrittr", "role": "Imports" }, { "package": "methods", "role": "Imports" }, { "package": "mvtnorm", "role": "Imports" }, { "package": "polynom", "role": "Imports" }, { "package": "purrr", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "tibble", "role": "Imports" }, { "package": "tsibble", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "feasts", "role": "Suggests" }, { "package": "fGarch", "role": "Suggests" }, { "package": "ggplot2", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rlang", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "shiny", "role": "Suggests" }, { "package": "shinydashboard", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "tsfeatures", "role": "Suggests" } ], "_owner": "ykang", "_selfowned": true, "_usedby": 0, "_updates": [ { "week": "2026-09", "n": 3 }, { "week": "2026-18", "n": 12 }, { "week": "2026-20", "n": 1 } ], "_tags": [], "_topics": [ "data-generation", "mixture-autoregressive", "statistical-computing", "time-series" ], "_stars": 78, "_contributors": [ { "user": "feng-li", "count": 69, "uuid": 1174311 }, { "user": "robjhyndman", "count": 63, "uuid": 127518 }, { "user": "charcoalf", "count": 57, "uuid": 68271770 }, { "user": "ykang", "count": 44, "uuid": 1201366 }, { "user": "mitchelloharawild", "count": 40, "uuid": 16127127 }, { "user": "ldbk", "count": 1, "uuid": 6603817 } ], "_userbio": { "uuid": 1201366, "type": "user", "name": "Yanfei Kang", "description": "Time Series Analysis; Statistical Computing; Big Data and Machine Learning. My lab @kl-lab" }, "_downloads": { "count": 312, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/gratis" }, "_devurl": "https://github.com/ykang/gratis", "_searchresults": 43, "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/gratis.html", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md", "manual.pdf" ], "_homeurl": "https://github.com/ykang/gratis", "_realowner": "ykang", "_cranurl": true, "_releases": [ { "version": "0.2.0", "date": "2020-08-03" }, { "version": "0.2.1", "date": "2020-10-08" }, { "version": "1.0.0", "date": "2022-01-14" }, { "version": "1.0.3", "date": "2023-03-27" }, { "version": "1.0.5", "date": "2023-08-28" }, { "version": "1.0.7", "date": "2024-04-10" }, { "version": "1.0.8", "date": "2026-02-26" } ], "_exports": [ "app_gratis", "arima_model", "ets_model", "generate", "generate_msts", "generate_target", "generate_ts", "generate_ts_with_target", "mar_model", "pi_coefficients", "rmixnorm", "rmixnorm_ts", "simulate_target" ], "_help": [ { "page": "app", "title": "Launch the gratis Shiny application", "topics": [ "app_gratis" ] }, { "page": "arima_model", "title": "Specify an ARIMA model", "topics": [ "arima_model" ] }, { "page": "ets_model", "title": "Specify an ETS model", "topics": [ "ets_model" ] }, { "page": "generate_msts", "title": "Generate a random multiple-seasonal MAR time series", "topics": [ "generate_msts" ] }, { "page": "generate_ts", "title": "Generate random MAR time series", "topics": [ "generate_ts" ] }, { "page": "generate_ts_with_target", "title": "Generate time series with target features", "topics": [ "generate_ts_with_target" ] }, { "page": "generate.mar", "title": "Generate a tsibble of synthetic time series", "topics": [ "generate.Arima", "generate.ets", "generate.mar" ] }, { "page": "mar_model", "title": "Specify a mixture autoregressive model", "topics": [ "mar_model" ] }, { "page": "pi_coefficients", "title": "Compute AR recursion coefficients from SARIMA coefficients", "topics": [ "pi_coefficients" ] }, { "page": "rmixnorm", "title": "Generate random values from a mixture of multivariate normal distributions", "topics": [ "rmixnorm" ] }, { "page": "rmixnorm_ts", "title": "Simulate a mixture-normal autoregressive process", "topics": [ "rmixnorm_ts" ] }, { "page": "simulate_target", "title": "Generate time series with target features", "topics": [ "generate_target", "simulate_target" ] }, { "page": "simulate.mar", "title": "Simulate from a mixture autoregressive model", "topics": [ "simulate.mar" ] } ], "_readme": "https://github.com/ykang/gratis/raw/HEAD/README.md", "_rundeps": [ "anytime", "BH", "cli", "codetools", "colorspace", "cpp11", "crayon", "digest", "doRNG", "dplyr", "farver", "foreach", "forecast", "fracdiff", "GA", "generics", "ggplot2", "glue", "gtable", "isoband", "iterators", "labeling", "lattice", "lifecycle", "lmtest", "lubridate", "magrittr", "mvtnorm", "nlme", "nnet", "pillar", "pkgconfig", "polynom", "purrr", "R6", "RColorBrewer", "Rcpp", "RcppArmadillo", "rlang", "rngtools", "S7", "scales", "tibble", "tidyselect", "timechange", "timeDate", "tsibble", "urca", "utf8", "vctrs", "viridisLite", "withr", "zoo" ], "_vignettes": [ { "source": "QuickStart.Rmd", "filename": "QuickStart.html", "title": "Introduction to gratis", "author": "Bocong Zhao and Rob J Hyndman", "engine": "knitr::rmarkdown", "headings": [ "About gratis", "Generate diverse time series", "Generate multiple seasonal time series", "Generate time series with targetted features", "ARIMA and ETS models" ], "created": "2020-07-20 08:10:42", "modified": "2026-02-24 04:08:41", "commits": 20 } ], "_score": 7.400624321661767, "_indexed": true, "_nocasepkg": "gratis", "_universes": [ "ykang" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.0.8", "date": "2026-05-14T05:14:46.000Z", "distro": "noble", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "f79839b0db46f85f3b7aba2c35b1abef294238a968c06e09f0153da2368d65e6", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.6.0", "os": "linux", "version": "1.0.8", "date": "2026-05-14T04:57:37.000Z", "distro": "noble", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "ef79e08aa0877c04b0e5a5b292b4b8af03ac661b3527c9a31bf8a4f114be0a5a", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.5.3", "os": "mac", "version": "1.0.8", "date": "2026-05-14T04:57:23.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "6865ac4477df765d1b5d8cf4c3dc74ce24063618adc2fe69ad18978ffaa1e1dd", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.6.0", "os": "mac", "version": "1.0.8", "date": "2026-05-14T04:56:54.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "b42fc751216ab68043f4c3084c7b13a4e170fb64a4636afc3ed6add34d34d707", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.7.0", "os": "win", "version": "1.0.8", "date": "2026-05-14T04:56:09.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "ee22e144c71fd2c0b2589087c7a6f41223680f82ea7df053db5e75cac8388ed0", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.5.3", "os": "win", "version": "1.0.8", "date": "2026-05-14T04:56:23.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "e08fede68c5ee98cdca6ad11f422a0e089dae7d7ce5c65004d67e60534c42d9b", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.6.0", "os": "win", "version": "1.0.8", "date": "2026-05-14T04:56:11.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "468726aa54ffbfcb15baab01e26d4c20cc155f71b9acf11fde3651c4556bb379", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" }, { "r": "4.6.0", "os": "wasm", "version": "1.0.8", "date": "2026-05-22T09:32:42.000Z", "commit": "efaef84e1d3c7b157b5af8a71857785c836ee33e", "fileid": "80dae9691c2d1947146e82b34844b1eded5ae5a2197b535197da67dfda13b7aa", "status": "success", "buildurl": "https://github.com/r-universe/ykang/actions/runs/25842348294" } ] }