Patterned Sensitivity Analysis for IV with Fixed Effects R package spliv version 0.2.1 Patterned sensitivity analysis for instrumental-variables designs with fixed effects or other residualization steps. The package provides uniform Conley-style sensitivity as a baseline, researcher-specified direct-effect patterns, sensitivity paths and tipping points, and optional confirmatory Beyond Plausibly Exogenous diagnostics. Software Depends: R (>= 4.1) Imports: stats, graphics, fixest Suggests: lfe, testthat (>= 3.0.0), ggplot2, knitr, rmarkdown Ore Koren <okoren@iu.edu> Comprehensive R Archive Network (CRAN) Ore Koren [aut, cre] GPL-3 2026-08-03 application/tgz https://CRAN.R-project.org/package=spliv doi:10.32614/CRAN.package.spliv