Files: R/auto_correlate.R
Copyright: 2024 Alexander P. Christensen <alexpaulchristensen@gmail.com>
           John Fox (two-step polyserial approximation in polyserial_vector,
           derived from polycor::polyserial)
License: GPL (>= 2)
Comment: The polyserial_vector function uses a two-step approximation
 derived from the polyserial function in the polycor R package
 by John Fox. Modified by Alexander P. Christensen, 16 March 2024.

Files: R/network_fit.R
Copyright: 2024 Alexander P. Christensen <alexpaulchristensen@gmail.com>
           Yves Rosseel (rmsea_ci function, derived from lavaan version 0.6.19)
License: GPL (>= 2)
Comment: The rmsea_ci function is derived from RMSEA confidence interval
 code in the lavaan R package (version 0.6.19) by Yves Rosseel. Modified 
 by Alexander P. Christensen, 01 November 2024.

Files: src/polychoric_matrix.c
Copyright: 2023-2026 Alexander P. Christensen <alexpaulchristensen@gmail.com>
           Alan Genz (bivariate normal CDF, translated from the Fortran
           TVPACK `MVBVU` routine as packaged in the pbivnorm R package)
License: GPL (>= 2)
Comment: Implements polychoric correlations using the Beasley-Springer-Moro
 inverse normal CDF, Genz's (2004) bivariate normal CDF approximation
 (a double-precision extension of Drezner & Wesolowsky, 1990, developed by
 Genz and Ge), and Newton-Raphson (Fisher scoring, with an exact-Hessian
 arcsin-reparameterized fallback) optimization of rho. The bivariate normal
 CDF is translated from Alan Genz's Fortran code (TVPACK, `MVBVU`), as
 packaged in the pbivnorm R package by Brenton Kenkel
 (https://github.com/cran/pbivnorm/blob/master/src/pbivnorm.f). This
 replaces an earlier version of this file that translated a
 Drezner-Wesolowsky approximation from Alexander Robitzsch's pbv package;
 that code is no longer present.
 Template developed with GPT-4 assistance; Genz CDF translation and
 Newton-Raphson optimizer developed with Claude Sonnet 5 assistance.

Files: src/proxswap_lattice.c
Copyright: 2026 Alexander P. Christensen <alexpaulchristensen@gmail.com>
License: CC0-1.0
Comment: Implements the proximity-pass and swapping-pass stages of the
 proximity-swap ring lattice construction algorithm. Logic implementation
 in C developed with Claude Sonnet 4.6 assistance.

Files: src/xoshiro.c
Copyright: 2019 David Blackman and Sebastiano Vigna (vigna@acm.org)
License: CC0
Comment: Dedicated to the public domain via CC0. No rights reserved. Modified by Alexander P. Christensen, 15 August 2023.

Files: src/ziggurat.c
Copyright: John Burkardt
License: LGPL (>= 2)
Comment: Original ziggurat implementation. Modified by Alexander P. Christensen, 30 July 2023.