SUDAAN is a single program comprising a family of analytic procedures. SUDAAN procedures are used to analyze data from complex sample surveys and other observational and experimental studies involving repeated measures and cluster-correlated data. A complex sample is a sample that may be multi-stage, stratified, unequally weighted, and/or clustered. SUDAAN is able to accommodate a variety of study designs and compute standard errors for ratio estimates, means, totals, regression coefficients, and other statistics. Whether you are a statistician or a research scientist not necessarily schooled in the analysis of complex samples, you will find SUDAAN invaluable for performing statistical analyses on such data.
The SUDAAN procedures offer a variety of analytic tools for various needs, including descriptive statistics procedures and regression modeling procedures.