General Linear Blend Frequency Polygon Density Estimation R package GLBFP version 0.5.1 Implements nonparametric density estimation with Averaged Shifted Histogram (ASH), Linear Blend Frequency Polygon (LBFP), and General Linear Blend Frequency Polygon (GLBFP) estimators. The package provides pointwise and grid-based estimation workflows, sparse-prefix grid-count computation, plotting helpers, and plug-in bandwidth selection. Methodological background follows Scott (1992) <doi:10.1002/9780470316849>, Terrell and Scott (1985) <doi:10.1080/01621459.1985.10477163>, and Carbon and Duchesne (2024) <doi:10.1007/s10463-023-00883-5>. Software Depends: R (>= 4.1.0) Imports: ggplot2, plotly Suggests: knitr, MASS, rmarkdown, testthat (>= 3.0.0) Aurélien Nicosia <aurelien.nicosia@mat.ulaval.ca> Comprehensive R Archive Network (CRAN) Aurélien Nicosia [aut, cre] GPL (>= 3) 2026-06-16 application/tgz https://CRAN.R-project.org/package=GLBFP doi:10.32614/CRAN.package.GLBFP