Software | Jesper N. Wulff

alphaN

Mon, 01 Jan 0001 00:00:00 +0000

alphaN implements the Bayesian–frequentist compromise from Wulff & Taylor (2024): it returns a sample-size-dependent significance threshold derived from Bayes factors, so that the alpha level shrinks as the sample grows. An interactive web app built on the same method lets users explore thresholds without writing code.

install.packages("alphaN")
library(alphaN)
alphaN(n = 500)

biokNN

Mon, 01 Jan 0001 00:00:00 +0000

biokNN provides a bi-objective k-nearest-neighbours imputation method for multilevel data, balancing global structure and cluster-level structure when filling in missing values. It accompanies Cubillos, Wøhlk & Wulff (2022).

install.packages("biokNN")

bootmakr

Mon, 01 Jan 0001 00:00:00 +0000

bootmakr adds bootstrap inference to sensemakr-style sensitivity analysis, so that sensitivity statistics come with resampling-based uncertainty rather than point estimates alone. A companion Stata implementation is available as bootmakr for Stata.

# install.packages("remotes")
remotes::install_github("jespernwulff/bootmakr")

bootmakr for Stata

Mon, 01 Jan 0001 00:00:00 +0000

The Stata implementation of bootmakr: bootstrap inference for sensemakr sensitivity analysis, with support for clustered bootstrap, benchmark covariates, multiple kd values, and plots.

net install bootmakr, from("https://raw.githubusercontent.com/jespernwulff/bootmakr-stata/main/")

ginteff

Mon, 01 Jan 0001 00:00:00 +0000

ginteff is an R port of the Stata ginteff command by Marius Radean (The Stata Journal, 2023). It computes two- and three-way interaction effects — via partial derivatives or first differences — for fitted regression models, with delta-method standard errors.

Built as a thin wrapper around marginaleffects, it supports arbitrary variance–covariance specifications ("HC3", clustered, or a user-supplied sandwich matrix), which propagate through to the final interaction-effect standard errors.

# install.packages("remotes")
remotes::install_github("jespernwulff/ginteff")