This is a PROMISE Software Engineering Repository data set made publicly available in order to encourage repeatable, verifiable, refutable, and/or improvable predictive models of software engineering. Title: Nickle Repository Transaction Data Sources: (a) Original creators of database: Bart Massey 01 503 725-5393 Computer Science Dept. PO Box 751 MS CMPS Portland State University Portland, OR USA 97207-0751 bart@cs.pdx.edu (b) Donor of database: owner (c) Date received: 31 March 2005 Past Usage: none Relevant Information: This dataset was assembled by analyzing the publicly-available CVS archives of the Nickle programming language (http://nickle.org) using a modified version of CVSAnalY (http://metricsgrimoire.github.io/CVSAnalY). It is intended for a wide variety of uses, and thus no dependent variable is specified. See Massey’s PROMISE 2005 paper, “Longitudinal Analysis of Long-Timescale Open Source Repository Data”, for further information. Number of Instances: 2972 Number of Attributes: 10 (incl. 2 inferred) Attribute information: Inferred filetype: non-numeric—nominal 9 values (documentation,images,i18n,ui,multimedia,code,build,devel-doc,unknown) File Pathname: UNIX relative path name non-numeric—structured 15 directories, 265 files Revision: dotted-decimal revision string non-numeric—structured 161 unique revision numbers Author ID: integer identifier non-numeric—nominal 6 unique authors Lines added: integer numeric—integer MIN: 0 MAX: 1011 MEAN: 24.0148 STDEV: 65.6858 Lines removed: integer numeric—integer MIN: 0 MAX: 678 MEAN: 11.6413 STDEV: 42.4373) File has since been removed (“in Attic”): boolean (0, 1) non-numeric—nominal 11.98% positive Commit has CVS_SILENT flag: boolean (0, 1) non-numeric—nominal never set Inferred that committer was not author: boolean (0, 1) non-numeric—nominal never set Commit date: date MIN: “1999-01-13 06:22:11” MAX: “2005-01-14 16:58:53” Note: CVS has trouble with timezones; we assume all dates are UTC. Missing Attribute Values: unknown inferred filetype (attr 1): 69 Class Distribution: N/A