qlaci R Package for Designing Adaptive Interventions

Our software resources are permanently archived at https://scholarsphere.psu.edu/collections/v41687m23q. Qlaci is no longer supported by the Help Desk. For the latest software and research updates, visit Susan Murphy’s website.

UNIX & Mac:
Users’ Guide: qlaci R Package users’ guide


The qlaci (Q-learning with adaptive confidence intervals) R package can be used with data from a sequential, multiple assignment, randomized trial (SMART) to design an adaptive intervention. The qlaci R package requires R 2.15, available for free download. This is the recommended platform for running this package.

Operating Systems

Windows users:  
Download qlaci.zip, a binary package.  Make sure to use the exact file name “qlaci.zip”.

UNIX & Mac users:
Download qlaci.tar.gz and install as a source package.
R CMD INSTALL qlaci.tar.gz


Recommended Citations

Ertefaie, A., Deng, K., Wagner, A. T., & Murphy, S. A. (2014). qlaci R package for using q-learning to construct adaptive interventions using data from a SMART (Version 1.0). University Park: The Methodology Center, Penn State. Available from methodology.psu.edu.

qlaci R package (Version 1.0) [Software]. (2014). University Park: The Methodology Center, Penn State. Retrieved from methodology.psu.edu