PROC QLEARN, developed by the Methodology Center, is a SAS procedure for analyzing data from a sequential, multiple assignment, randomized trial (SMART) to develop adaptive interventions. The procedure uses a generalization of Q-learning, which allows treatments and covariates vary over time. Compatible with SAS version 9.1 or higher. Features include
works with two-decision-stages,
obtains confidence intervals for the regression parameters from decision stage 1,
enables construction of more richly-individualized adaptive interventions, and
takes full advantage of data generated during a SMART.
What is Q-learning?
Q-learning, a method developed in computer science, is an extension of the standard regression method that can be used with longitudinal data in which treatments and covariates vary over time.
What is SMART?
A sequential, multiple assignment, randomized trial (SMART) is an experimental design that enables scientists to build better adaptive interventions.
PROC QLEARN (Version 1.0) [Software] (2012). University Park: The Methodology Center, Penn State. Retrieved from http://methodology.psu.edu
Ertefaie, A., Almirall, D. A., Huang L., Dziak, J. J., Wagner, A. T., & Murphy, S. A. (2012). SAS PROC QLEARN users’ guide (Version 1.0). University Park: The Methodology Center, Penn State. Retrieved from http://methodology.psu.edu
Paste and run the code below in SAS. If it runs without error, installation succeeded.
If installation fails, consult the install instructions on the left or email the help desk.