The core focus of the Zelig team in the near future is on a series of releases that:

• Substantially improve Zelig’s robustness and stability through the development of an extensive test suite

• Improve Zelig’s documentation

• Expand what Zelig can do with simulations, including returning them to users in standardised data frames and possibly converting graphing functions to ggplot2.

• Improve Zelig integration with Amelia, MatchIt, and WhatIf packages

• Improve Zelig functionality for small samples, namely diagnostics via jackknife variance estimator

• Implement Cox Proportional Hazard models

• Implement two-stage least squares regression (instrumental variable regression).

• Enhance time series models

• Introduce Functionality for research on privacy protected data

• Increase adoption and build a user community

These are on-going projects related to Zelig, which will be released periodically as part as related Zelig packages, outside Zelig core:

• Hierarchical models: A new Zelig related package for multilevel models

• Ecological Inference models: A new Zelig related package

• GAM: A new Zelig related package

• Improved replication utilities for Zelig results

For more details about on-going development projects, checkout the Development Blog.