COPYRIGHTS for the psychonetrics package
========================================

All files in this package are copyright (c) Sacha Epskamp and licensed
under GPL-2 (see the License field in the DESCRIPTION file), with the
following exception:

Bundled LBFGS++ (LBFGSpp) headers
---------------------------------

The files

    inst/include/LBFGS.h
    inst/include/LBFGSB.h
    inst/include/LBFGSpp/BFGSMat.h
    inst/include/LBFGSpp/BKLDLT.h
    inst/include/LBFGSpp/Cauchy.h
    inst/include/LBFGSpp/LineSearchBacktracking.h
    inst/include/LBFGSpp/LineSearchBracketing.h
    inst/include/LBFGSpp/LineSearchMoreThuente.h
    inst/include/LBFGSpp/LineSearchNocedalWright.h
    inst/include/LBFGSpp/Param.h
    inst/include/LBFGSpp/SubspaceMin.h

are part of the LBFGS++ (LBFGSpp) library, a header-only C++ library for
the L-BFGS and L-BFGS-B algorithms, by Yixuan Qiu
(https://github.com/yixuan/LBFGSpp), bundled here under the MIT license.
The copyright holders are:

    Copyright (c) 1990      Jorge Nocedal
    Copyright (c) 2007-2010 Naoaki Okazaki
    Copyright (c) 2016-2023 Yixuan Qiu
    Copyright (c) 2018-2023 Dirk Toewe

The full text of the MIT license for these files is included in this
package as inst/include/LBFGSpp-LICENSE.md and reproduced below:

    Permission is hereby granted, free of charge, to any person obtaining
    a copy of this software and associated documentation files (the
    "Software"), to deal in the Software without restriction, including
    without limitation the rights to use, copy, modify, merge, publish,
    distribute, sublicense, and/or sell copies of the Software, and to
    permit persons to whom the Software is furnished to do so, subject to
    the following conditions:

    The above copyright notice and this permission notice shall be
    included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.