Extra data files for "Large-scale, AST-based API-usage analysis of open-source Java projects" Ralf Lämmel and Ekaterina Pek and Jürgen Starek listOfTheKnownAPIs.txt: List of manually tagged APIs. listOfBuiltProjects.txt: List of built projects. listOfReferenceProjects.txt: List of reference projects. APINumberToProjectSizeScannerBased.csv Numbers of known APIs used in the project. APIMethodsToProjectSize.csv Numbers of distinct API methods used in the projects (without distinguishing APIs). APIRatioToProjectSize.csv Ratio of API method calls to all method calls. JDOM.txt Usage of JDOM’s distinct methods. SAX.txt Usage of SAX’ distinct methods. ZipfCombined.csv Frequency of calling API vs. non-API methods.