xorg

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 [e-mail]

(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