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: X.org 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 X.org (http://x.org) available on freedesktop.org (http://freedesktop.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. Note that on 668 occasions, a negative lines-added count was recorded by CVSAnalY, apparently due to a bug. These entries should probably be repaired or at least filtered out. Number of Instances: 136435 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 1567 directories, 20382 files Revision: dotted-decimal revision string non-numeric—structured 1740 unique revision numbers Author ID: integer identifier non-numeric—nominal 42 unique authors Lines added: integer numeric—integer MIN: 0 MAX: 132642 MEAN: 81.9752 STDEV: 1221.55 MIN: 0 MAX: 26150 MEAN: 38.7436 STDEV: 354.985 (excl. images, multimedia) Note: on 668 occasions, a negative lines-added count was recorded by CVSAnalY, apparently due to a bug. In the summary statistics reported in this comment, these additions are not counted. Lines removed: integer numeric—integer MIN: 0 MAX: 11765 MEAN: 16.0445 STDEV: 143.589 MIN: 0 MAX: 11765 MEAN: 13.9409 STDEV: 128.19 (excl. images, multimedia) File has since been removed (“in Attic”): boolean (0, 1) non-numeric—nominal 21.19% 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 0.46% positive Commit date: date MIN: “2003-11-14 15:54:29” MAX: “2005-02-19 16:00:13” Note: CVS has trouble with timezones; we assume all dates are UTC. Missing Attribute Values: unknown inferred filetype (attr 1): 17280 Class Distribution: N/A