https://github.com/atahk/pscl

Political Science Computational Laboratory
https://github.com/atahk/pscl

Last synced: 3 months ago
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Political Science Computational Laboratory

• Host: GitHub
• URL: https://github.com/atahk/pscl
• Owner: atahk
• Created: 2017-05-04T14:02:10.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2024-01-16T06:21:56.000Z (10 months ago)
• Last Synced: 2024-07-21T05:25:02.819Z (4 months ago)
• Language: R
• Size: 3.47 MB
• Stars: 63
• Watchers: 8
• Forks: 14
• Open Issues: 6
• Metadata Files:
  • Readme: README.md

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README

        
# Political Science Computational Laboratory

## Description

**pscl** is an R package providing classes, methods and test data for

- Bayesian analysis of roll call data and other binary, item-response type data (e.g., from surveys or educational testing).

- elementary Bayesian statistics

- maximum likelihood estimation of zero-inflated and hurdle models for count data

- utility functions

## Historical note

The Political Science Computational Laboratory was the name of Simon Jackman's research group at Stanford University's Department of Political Science (2002-2014), where this package was first developed.

The hurdle and count data models were extensively re-written and updated by Achim Zeileis and Christian Kleiber.  

## Installation

Most users should use latest stable release of the package, which can be installed from [CRAN](https://cran.r-project.org/) by running

```R

install.packages("pscl")

```

The development version can be installed directly from [GitHub](https://github.com/atahk/pscl) by running

```R

install.packages("devtools") ## if not already installed

library(devtools)

install_github("atahk/pscl")

```