Try this quick tutorial on preparing Analysis-Ready Data Sets, prepared by the UMMS Quantitative Methods Core and the Lamar Soutter Library. Ensure Flash is enabled in Chrome (and allows https://library.umassmed.edu), or open the tutorial in Firefox.
The Quantitative Methods Core, within the Division of Biostatistics and Health Sciences Research in the Department of Quantitative Health Sciences, provides clinical research support in biostatistics, experimental design, and data management.
R is a programming language used for data analysis, data manipulation, visualization, and statistical analysis. The language and development environment are both open source and R Studio, a code editor, debugger, and visualization tool for R, has a free version.