IRTC 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

IRTC source code, documentation, tests, and bundled simulated datasets 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
-----------------------------

IRTC calls functions from the separately distributed R packages listed below.
Their source code is not bundled in IRTC, and their authors and copyright
holders retain all rights in those packages.

Package: MASS
Functions used: ginv, mvrnorm
Upstream project: https://CRAN.R-project.org/package=MASS
License: GPL-2 | GPL-3

Package: Rcpp
Use: generated native interfaces and R/C++ runtime integration
Upstream project: https://CRAN.R-project.org/package=Rcpp
License: GPL (>= 2)

Package: RcppArmadillo
Use: compilation headers and linear algebra integration
Upstream project: https://CRAN.R-project.org/package=RcppArmadillo
License: GPL (>= 2)

Package: mvtnorm
Function used: dmvnorm
Upstream project: https://CRAN.R-project.org/package=mvtnorm
License: GPL-2

Package: sfsmisc
Function used: QUnif
Upstream project: https://CRAN.R-project.org/package=sfsmisc
License: GPL (>= 2)

These dependency references do not imply endorsement of IRTC by the external
package authors. The dependency review was completed on 2026-07-14.

License
-------

The complete IRTC package is distributed under the GNU General Public License
version 2 or, at the recipient's option, any later version (GPL >= 2). Standard
copies of the GPL are supplied with R and are available at
https://www.R-project.org/Licenses/.

Copyright in IRTC belongs to WEIAN DATA TECH (Beijing) Co., Ltd. Copyright in
external runtime dependencies remains with their respective holders.
