LISTC copyright and licensing notice
=========================================

Copyright (C) 2026 WEIAN DATA TECH (Beijing) Co., Ltd.
(惟安数据科技（北京）有限公司)
Contact: contact@weiandata.com

LISTC source code, documentation, tests, and bundled synthetic data are
copyrighted by WEIAN DATA TECH (Beijing) Co., Ltd. and distributed under the
GNU General Public License version 2 or, at the recipient's option, any later
version (GPL >= 2).

External runtime dependencies
-----------------------------

Package: data.table
Use: grouped aggregation engine, fread csv import, dcast pivoting
Upstream project: https://github.com/Rdatatable/data.table
License: MPL-2.0
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: haven
Use: SPSS/SAS/Stata import with value labels
Upstream project: https://github.com/tidyverse/haven
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: jsonlite
Use: JSON configuration parsing and JSON result export
Upstream project: https://github.com/jeroen/jsonlite
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: openxlsx
Use: formatted Excel workbook export
Upstream project: https://github.com/ycphs/openxlsx
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: readxl
Use: Excel data and configuration-workbook import
Upstream project: https://github.com/tidyverse/readxl
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: rlang
Use: quasiquotation-based variable capture and condition signalling
Upstream project: https://github.com/r-lib/rlang
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: tibble
Use: tidy result containers
Upstream project: https://github.com/tidyverse/tibble
License: MIT + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

Package: yaml
Use: YAML configuration parsing
Upstream project: https://github.com/vubiostat/r-yaml
License: BSD_3_clause + file LICENSE
Bundled source: No
Copyright: Retained by the upstream copyright holders

The source of separately distributed dependencies is not bundled. Dependency
references do not imply endorsement, ownership transfer, or a change to
upstream license terms.

License
-------

The complete LISTC package is distributed under the GNU General Public
License version 2 or, at the recipient's option, any later version (GPL >= 2).
Copyright in external dependencies remains with their respective holders.