Create 3D Barplots (barplot3d)
Creates 3D barplots. Includes a function for sequence context plots used in DNA sequencing analysis.

Distributional Differences Across Contingency Tables (DiffXTables)
Statistical methods for hypothesis testing of differences in the underlying distributions across two or more contingency tables. The package includes three tests: the comparative chi-squared test (Song et al, 2014) <doi:10.1093/nar/gku086> (Zhang et al, 2015) <doi:10.1093/nar/gkv358>, the Sharma-Song test, and the heterogeneity test. They all have an asymptotically chi-squared null distribution. These options allow one to test for patterns that differ in first and second orders, directly related to marginal and joint distributions of given contingency tables.

Probability Associator Time (PASS-T) (passt)
Simulates judgments of frequency and duration based on the Probability Associator Time (PASS-T) model. PASS-T is a memory model based on a simple competitive artificial neural network. It can imitate human judgments of frequency and duration, which have been extensively studied in cognitive psychology (e.g. Hintzman (1970) <doi:10.1037/h0028865>, Betsch et al. (2010) <https://…/2010-18204-003> ). The PASS-T model is an extension of the PASS model (Sedlmeier, 2002, ISBN:0198508638). The package provides an easy way to run simulations, which can then be compared with empirical data in human judgments of frequency and duration.

Obtaining and Estimating Unidimensional IRT Dual Models (InDisc)
Performs a unified approach for obtaining and estimating unidimensional Item Response Theory (IRT) Dual Models (DMs), proposed by Ferrando (2019 <doi:10.1177/0146621618817779>).