{"id":18847799,"url":"https://github.com/jacobwilliams/splpak","last_synced_at":"2026-02-20T09:32:38.242Z","repository":{"id":65427984,"uuid":"590298226","full_name":"jacobwilliams/splpak","owner":"jacobwilliams","description":"Modernized SPLPAK library for multidimensional least-squares cubic spline fitting","archived":false,"fork":false,"pushed_at":"2025-03-21T16:39:47.000Z","size":1039,"stargazers_count":11,"open_issues_count":3,"forks_count":5,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-10-23T16:53:35.066Z","etag":null,"topics":["cubic-splines","curve-fitting","fortran","fortran-package-manager","interpolation","least-squares","splines"],"latest_commit_sha":null,"homepage":"","language":"Fortran","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/jacobwilliams.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2023-01-18T04:37:38.000Z","updated_at":"2025-09-11T11:40:06.000Z","dependencies_parsed_at":"2025-02-07T22:28:06.536Z","dependency_job_id":"8dd22753-767d-454c-bee0-19d1e6cd9603","html_url":"https://github.com/jacobwilliams/splpak","commit_stats":null,"previous_names":[],"tags_count":5,"template":false,"template_full_name":null,"purl":"pkg:github/jacobwilliams/splpak","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fsplpak","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fsplpak/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fsplpak/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fsplpak/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/jacobwilliams","download_url":"https://codeload.github.com/jacobwilliams/splpak/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/jacobwilliams%2Fsplpak/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29647737,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-20T09:27:29.698Z","status":"ssl_error","status_checked_at":"2026-02-20T09:26:12.373Z","response_time":59,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["cubic-splines","curve-fitting","fortran","fortran-package-manager","interpolation","least-squares","splines"],"created_at":"2024-11-08T03:09:42.720Z","updated_at":"2026-02-20T09:32:38.219Z","avatar_url":"https://github.com/jacobwilliams.png","language":"Fortran","funding_links":[],"categories":[],"sub_categories":[],"readme":"![splpak](media/splpak.png)\n============\n\nThis library contains routines for fitting (least squares) a multidimensional cubic spline to arbitrarily located data.  It also contains routines for evaluating this spline (or its partial derivatives) at any point.\nThis is a modernization of the double precision SPLPAK files from [NCL](https://github.com/NCAR/ncl).\n\n## Status\n\n[![Language](https://img.shields.io/badge/-Fortran-734f96?logo=fortran\u0026logoColor=white)](https://github.com/topics/fortran)\n[![GitHub release](https://img.shields.io/github/release/jacobwilliams/splpak.svg)](https://github.com/jacobwilliams/splpak/releases/latest)\n[![Build Status](https://github.com/jacobwilliams/splpak/actions/workflows/CI.yml/badge.svg)](https://github.com/jacobwilliams/splpak/actions)\n[![codecov](https://codecov.io/gh/jacobwilliams/splpak/branch/master/graph/badge.svg)](https://codecov.io/gh/jacobwilliams/splpak)\n[![last-commit](https://img.shields.io/github/last-commit/jacobwilliams/splpak)](https://github.com/jacobwilliams/splpak/commits/master)\n\n## Compiling\n\nA `fpm.toml` file is provided for compiling splpak with the [Fortran Package Manager](https://github.com/fortran-lang/fpm). For example, to build:\n\n```\nfpm build --profile release\n```\n\nBy default, the library is built with double precision (`real64`) real values. Explicitly specifying the real kind can be done using the following processor flags:\n\nPreprocessor flag | Kind  | Number of bytes\n----------------- | ----- | ---------------\n`REAL32`  | `real(kind=real32)`  | 4\n`REAL64`  | `real(kind=real64)`  | 8\n`REAL128` | `real(kind=real128)` | 16\n\nFor example, to build a single precision version of the library, use:\n\n```\nfpm build --profile release --flag \"-DREAL32\"\n```\n\nTo run the unit tests:\n\n```\nfpm test --profile release\n```\n\nTo use `splpak` within your fpm project, add the following to your `fpm.toml` file:\n```toml\n[dependencies]\nsplpak = { git=\"https://github.com/jacobwilliams/splpak.git\" }\n```\n\nor, to use a specific version:\n```toml\n[dependencies]\nsplpak = { git=\"https://github.com/jacobwilliams/splpak.git\", tag = \"2.0.0\"  }\n```\n\n## Documentation\n\nThe latest API documentation can be found [here](https://jacobwilliams.github.io/splpak/). This was generated from the source code using [FORD](https://github.com/Fortran-FOSS-Programmers/ford) (i.e. by running `ford ford.md`).\n\n## See also\n *  [The NCAR Command Language ](https://github.com/NCAR/ncl) (specificially, the [csagrid](https://github.com/NCAR/ncl/tree/develop/ngmath/src/lib/gridpack/csagrid) directory)\n * [bspline](https://github.com/NCAR/bspline) - Cubic B-Spline implementation in C++ templates. Also has a copy of [splpak.f](https://github.com/NCAR/bspline/tree/master/Tests/Fortran)\n * [Ngmath Library Overview](https://ngwww.ucar.edu/ngmath/)\n * [bspline-fortran](https://github.com/jacobwilliams/bspline-fortran) Multidimensional B-Spline Interpolation of Data on a Regular Grid\n * [regridpack](https://github.com/jacobwilliams/regridpack) Linear or cubic interpolation for 1D-4D grids\n * [finterp](https://github.com/jacobwilliams/finterp) 1D-6D linear or nearest-neighbor interpolation","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjacobwilliams%2Fsplpak","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjacobwilliams%2Fsplpak","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjacobwilliams%2Fsplpak/lists"}