{ "_id": "6ab4f0e43d719c1f840978cc", "Package": "cxreg", "Title": "Complex-Valued Lasso and Complex-Valued Graphical Lasso", "Version": "1.1.4", "Authors@R": "c(\nperson(\"Younghoon\", \"Kim\", , \"ykim124@ua.edu\", role = c(\"aut\", \"cre\")),\nperson(\"Navonil\", \"Deb\", role = \"aut\"),\nperson(\"Sumanta\", \"Basu\", role = \"aut\")\n)", "Description": "Implements 'glmnet'-style complex-valued lasso (CLASSO)\nand complex-valued graphical lasso (CGLASSO) via a pathwise\ncoordinate descent algorithm for complex-valued parameters,\nusing an isomorphism between complex numbers and 2x2 orthogonal\nmatrices. Also provides a full inference pipeline for\nhigh-dimensional sparse spectral precision matrices, including\ndata-driven bandwidth selection, one-step debiasing, asymptotic\nvariance estimation, entry-wise confidence regions, and\nFDR-controlled hypothesis testing. Supporting tools for\ncross-validation, simulation, coefficient extraction, and\nplotting are included. See Deb, Kuceyeski, and Basu (2024)\n and Deb, Kim, and Basu (2026)\n.", "License": "MIT + file LICENSE", "VignetteBuilder": "knitr", "Encoding": "UTF-8", "RoxygenNote": "7.3.2", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-09-24 09:39:24 UTC", "User": "root" }, "Author": "Younghoon Kim [aut, cre], Navonil Deb [aut], Sumanta Basu [aut]", "Maintainer": "Younghoon Kim ", "Repository": "https://cran.r-universe.dev", "Date/Publication": "2026-07-11 18:10:02 UTC", "RemoteUrl": "https://github.com/cran/cxreg", "RemoteRef": "HEAD", "RemoteSha": "159d01d99ff97a951e666c9e2810924e1f829f8c", "_user": "cran", "_type": "src", "_file": "cxreg_1.1.4.tar.gz", "_fileid": "https://r2.ropensci.org/222626e3f81f830b2b9f8bd7f72450c3576587dc591da8294d3cedd3577a3172", "_filesize": 1274338, "_sha256": "222626e3f81f830b2b9f8bd7f72450c3576587dc591da8294d3cedd3577a3172", "_expires": "2027-01-02T09:44:02.000Z", "_created": "2026-09-24T09:39:24.000Z", "_published": "2026-09-24T09:44:04.643Z", "_jobs": [ { "job": 107577794807, "time": 172, "config": "linux-devel-arm64", "r": "4.7.0", "check": "WARNING", "artifact": "10800872827" }, { "job": 107577794664, "time": 183, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "WARNING", "artifact": "10801120968" }, { "job": 107577794743, "time": 167, "config": "linux-release-arm64", "r": "4.6.1", "check": "WARNING", "artifact": "10800689033" }, { "job": 107577794706, "time": 176, "config": "linux-release-x86_64", "r": "4.6.1", "check": "WARNING", "artifact": "10800039252" }, { "job": 107576469200, "time": 242, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "10800204906" }, { "job": 107577794538, "time": 122, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "10800514442" }, { "job": 107577794731, "time": 226, "config": "windows-devel-arm64", "r": "4.7.0", "check": "WARNING", "artifact": "10800927758" }, { "job": 107577794899, "time": 163, "config": "windows-devel-x86_64", "r": "4.7.0", "check": "WARNING", "artifact": "10800971929" }, { "job": 107577794796, "time": 205, "config": "windows-release-arm64", "r": "4.6.1", "check": "WARNING", "artifact": "10800469653" }, { "job": 107577794894, "time": 146, "config": "windows-release-x86_64", "r": "4.6.1", "check": "WARNING", "artifact": "10800484636" } ], "_host": "GitHub-Actions", "_buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792", "_status": "success", "_upstream": "https://github.com/cran/cxreg", "_commit": { "id": "159d01d99ff97a951e666c9e2810924e1f829f8c", "author": "Younghoon Kim ", "committer": "cran-robot ", "message": "version 1.1.4\n", "time": 1783793402 }, "_maintainer": { "name": "Younghoon Kim", "email": "ykim124@ua.edu" }, "_distro": "resolute", "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.5.0", "role": "Depends" }, { "package": "fields", "role": "Imports" }, { "package": "foreach", "role": "Imports" }, { "package": "gdata", "role": "Imports" }, { "package": "grDevices", "role": "Imports" }, { "package": "Matrix", "role": "Imports" }, { "package": "methods", "role": "Imports" }, { "package": "mvtnorm", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "devtools", "role": "Suggests" }, { "package": "doParallel", "role": "Suggests" }, { "package": "knitr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" }, { "package": "testthat", "version": ">= 3.0.0", "role": "Suggests" }, { "package": "tinytex", "role": "Suggests" }, { "package": "tools", "role": "Suggests" }, { "package": "xfun", "role": "Suggests" } ], "_owner": "cran", "_selfowned": false, "_usedby": 0, "_updates": [ { "week": "2026-27", "n": 1 }, { "week": "2026-28", "n": 1 } ], "_tags": [ { "name": "1.1.2", "date": "2026-07-05" }, { "name": "1.1.4", "date": "2026-07-11" } ], "_stars": 0, "_contributors": [ { "user": "yk748", "count": 1, "uuid": 152736037 } ], "_userbio": { "uuid": 6899542, "type": "organization", "name": "cran", "followers": 630, "description": "Unofficial read-only mirror of all CRAN R packages" }, "_downloads": { "count": 281, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/cxreg" }, "_searchresults": 8, "_rbuild": "4.6.1", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/cxreg.html", "extra/manual.pdf", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md", "LICENSE" ], "_realowner": "cran", "_cranurl": false, "_releases": [ { "version": "1.0.0", "date": "2025-09-17" }, { "version": "1.1.2", "date": "2026-07-05" }, { "version": "1.1.4", "date": "2026-07-11" } ], "_exports": [ "buildPredmat", "cglasso", "classo", "classo.control", "coef.classo", "cv.classo", "decglasso", "dft.all", "dft.j", "fhat_at", "predict.classo", "print.classo", "print.cv.classo", "select_m", "spec.fdr", "spec.test", "var.cov" ], "_datasets": [ { "name": "cglasso_example", "title": "Example data for cglasso", "object": "cglasso_example", "file": "cglasso_example.rda", "class": [ "list" ], "fields": [], "table": false, "tojson": true }, { "name": "classo_example", "title": "Example data for classo", "object": "classo_example", "file": "classo_example.rda", "class": [ "list" ], "fields": [], "table": false, "tojson": true } ], "_help": [ { "page": "cxreg-package", "title": "Complex-valued Lasso, graphical Lasso, and spectral inference", "topics": [ "cxreg-package" ] }, { "page": "buildPredmat", "title": "Build Prediction Matrix", "topics": [ "buildPredmat", "buildPredmat.default" ] }, { "page": "cglasso", "title": "fit a complex-valued graphical lasso", "topics": [ "cglasso" ] }, { "page": "cglasso_example", "title": "Example data for cglasso", "topics": [ "cglasso_example" ] }, { "page": "cglasso.path", "title": "fit a complex-valued graphical Lasso for a path of lambda values", "topics": [ "cglasso.path" ] }, { "page": "classo", "title": "fit a complex-valued lasso", "topics": [ "classo" ] }, { "page": "classo_example", "title": "Example data for classo", "topics": [ "classo_example" ] }, { "page": "classo.control", "title": "Internal classo parameters", "topics": [ "classo.control" ] }, { "page": "classo.path", "title": "fit a complex-valued lasso for a path of lambda values", "topics": [ "classo.path" ] }, { "page": "predict.classo", "title": "Extract coefficients from a classo object", "topics": [ "coef.classo", "predict.classo" ] }, { "page": "coef.cv.classo", "title": "Extract coefficients from a cv.classo object", "topics": [ "coef.cv.classo" ] }, { "page": "cv.classo", "title": "Cross-validation for classo", "topics": [ "cv.classo" ] }, { "page": "cxreg", "title": "Simulated data for the cxreg vignette", "topics": [ "cxreg", "x", "y" ] }, { "page": "decglasso", "title": "Debias the cglasso estimator", "topics": [ "decglasso" ] }, { "page": "dft.all", "title": "Discrete Fourier Transform of matrix X", "topics": [ "dft.all" ] }, { "page": "dft.j", "title": "Discrete Fourier Transform of matrix X at a fixed frequency omega_j", "topics": [ "dft.j" ] }, { "page": "family.classo", "title": "Extract the family from a classo object", "topics": [ "family.classo", "family.classofit", "family.cv.classo" ] }, { "page": "fhat_at", "title": "Smoothed periodogram at a fixed frequency", "topics": [ "fhat_at" ] }, { "page": "plot.cglasso", "title": "Plot heatmap from a \"cglasso\" object", "topics": [ "plot.cglasso" ] }, { "page": "plot.classo", "title": "plot coefficients from a \"classo\" object", "topics": [ "plot.classo" ] }, { "page": "plot.cv.classo", "title": "plot the cross-validation curve produced by cv.classo", "topics": [ "plot.cv.classo" ] }, { "page": "predict.cv.classo", "title": "Make predictions from a \"cv.classo\" object", "topics": [ "predict.cv.classo" ] }, { "page": "print.classo", "title": "print a classo object", "topics": [ "print.classo" ] }, { "page": "print.cv.classo", "title": "print a cross-validated classo object", "topics": [ "print.cv.classo" ] }, { "page": "select_m", "title": "Select the optimal bandwidth 'm' for spectral density estimation", "topics": [ "select_m" ] }, { "page": "spec.fdr", "title": "FDR-controlled hypothesis testing for spectral precision matrix entries", "topics": [ "spec.fdr" ] }, { "page": "spec.test", "title": "Confidence regions and test statistics for spectral precision matrix entries", "topics": [ "spec.test" ] }, { "page": "var.cov", "title": "Variance-covariance estimation for the debiased spectral precision matrix", "topics": [ "var.cov" ] } ], "_readme": "https://github.com/cran/cxreg/raw/HEAD/README.md", "_rundeps": [ "codetools", "dotCall64", "fields", "foreach", "gdata", "gtools", "iterators", "lattice", "maps", "Matrix", "mvtnorm", "RColorBrewer", "Rcpp", "spam", "viridisLite" ], "_vignettes": [ { "source": "cxreg.Rmd", "filename": "cxreg.html", "title": "An Introduction to cxreg", "author": "Younghoon Kim, Navonil Deb, Sumanta Basu", "engine": "knitr::rmarkdown", "headings": [ "Introduction", "Installation", "Example: classo", "Example: cglasso", "Example: Sparse Spectral Precision Matrix Estimation", "Step 1 — Generate a multivariate Gaussian white noise process:", "Step 2 — Compute the DFT and smoothed periodogram:", "Step 3 — Estimate sparse spectral precision matrix via \\texttt{cglasso}:", "Step 4 — Visualize the estimated spectral precision matrix:", "Step 5 — Compare to the true precision matrix:" ], "created": "2026-07-05 20:30:17", "modified": "2026-07-05 20:30:17", "commits": 1 }, { "source": "cxreg-inference.Rmd", "filename": "cxreg-inference.html", "title": "Inference for Sparse Spectral Precision Matrices with cxreg", "author": "Younghoon Kim, Navonil Deb, Sumanta Basu", "engine": "knitr::rmarkdown", "headings": [ "Introduction", "Background", "Spectral density and the DFT", "The CGLASSO and deCGLASSO estimators", "Step 1 — Generate a multivariate white noise process", "Step 2 — Bandwidth selection via GCV", "Step 3 — Compute the DFT and smoothed periodogram", "Step 4 — Fit CGLASSO and compute the deCGLASSO estimator", "Step 5 — Estimate the asymptotic variance", "Step 6 — Entry-wise tests and confidence regions", "Step 7 — FDR-controlled support recovery", "Summary of functions", "References" ], "created": "2026-07-11 18:10:02", "modified": "2026-07-11 18:10:02", "commits": 1 } ], "_score": 3.3010299956639813, "_indexed": true, "_nocasepkg": "cxreg", "_universes": [ "cran" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.1.4", "date": "2026-09-24T09:42:08.000Z", "distro": "resolute", "arch": "aarch64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/24ce9fa218bd9fbe746649a8ccc8d6905800589424e5727cebfe548d57a5b8e9", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.7.0", "os": "linux", "version": "1.1.4", "date": "2026-09-24T09:42:05.000Z", "distro": "resolute", "arch": "x86_64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/8a64fb16f049a43f212e6c93a9fa980d4771f938c4da90c7b57efdf69d7aaeb1", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.6.1", "os": "linux", "version": "1.1.4", "date": "2026-09-24T09:42:07.000Z", "distro": "resolute", "arch": "aarch64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/ae49440154fe7d53e071635286e4f6212028e5d12a9ee79f215967dfc1dab17c", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.6.1", "os": "linux", "version": "1.1.4", "date": "2026-09-24T09:42:01.000Z", "distro": "resolute", "arch": "x86_64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/d1775d2c865231ca9903900cd81d969b8a66cfe67160937cbafa6def5052b669", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.6.0", "os": "wasm", "version": "1.1.4", "date": "2026-09-24T09:41:50.000Z", "arch": "emscripten", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/7db32bfa207c7dc6deaf23bec48dec35e67fc8305c98ae1af429dd4b76c6bd90", "status": "success", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.7.0", "os": "win", "version": "1.1.4", "date": "2026-09-24T09:42:37.000Z", "arch": "aarch64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/caeba587c488241377ce0d68171037389485e0921b284d4a0154d1fc19e814a7", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.7.0", "os": "win", "version": "1.1.4", "date": "2026-09-24T09:40:51.000Z", "arch": "x86_64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/9704a900727fc915e2891bedd05407a800b477b803992f86816ee2e03f87245f", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.6.1", "os": "win", "version": "1.1.4", "date": "2026-09-24T09:42:22.000Z", "arch": "aarch64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/87ca63027eb5b717885a69e319555761165e76b32c94978c71a512b761a4a0f4", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" }, { "r": "4.6.1", "os": "win", "version": "1.1.4", "date": "2026-09-24T09:40:57.000Z", "arch": "x86_64", "commit": "159d01d99ff97a951e666c9e2810924e1f829f8c", "fileid": "https://r2.ropensci.org/87afa689e665f6b8c86fb414c471cf6d08ff09f56bcea22aaa149688e284467c", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/cran/actions/runs/35982146792" } ] }