gkwdist 1.1.2

Code Cleanup and Testing Enhancement

C++ Code Cleanup

• Removed legacy commented code: Cleaned up all C++ source files (gkw.cpp, bkw.cpp, kkw.cpp, ekw.cpp, kw.cpp, bpmc.cpp, beta_.cpp) by removing old commented-out implementations that were kept for reference.
• Code formatting: Improved R wrapper formatting with consistent indentation and alignment in .Call() invocations and roxygen examples.

New Test Suites

• Analytical derivatives validation (test-derivatives-validation.R):

  • 70 comprehensive tests validating gradient (gr*) and Hessian (hs*) functions
  • Compares analytical derivatives against numerical differentiation via numDeriv
  • Covers all 7 subfamilies: GKw, BKw, KKw, EKw, Mc, Kw, Beta
  • Multiple parameter configurations per subfamily for robustness

• MLE performance benchmarks (test-mle-performance.R):

  • Compares optimization efficiency across three scenarios: numerical-only, analytical gradient, and analytical gradient + Hessian
  • Validates that analytical derivatives provide equivalent or better accuracy
  • Tests convergence rates and computational time across all distribution families

JOSS Paper

• Added paper for JOSS submission (inst/paper/):
  • Complete manuscript describing the package's statistical framework
  • Comprehensive bibliography with foundational references
  • Compiled PDF ready for submission

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