apache / arrow-cookbook
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 23 files with 10,168 lines of code.
    • 0 files changed more than 100 times (0 lines of code)
    • 0 files changed 51-100 times (0 lines of code)
    • 0 files changed 21-50 times (0 lines of code)
    • 4 files changed 6-20 times (290 lines of code)
    • 19 files changed 1-5 times (9,878 lines of code)
0% | 0% | 0% | 2% | 97%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 23 files with 10,168 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 0 files changed by 11-25 contributors (0 lines of code)
    • 1 file changed by 6-10 contributors (28 lines of code)
    • 9 files changed by 2-5 contributors (996 lines of code)
    • 13 files changed by 1 contributor (9,144 lines of code)
0% | 0% | <1% | 9% | 89%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
rst, yaml, rmd, html, cc, py, md, txt, bat, sh, gitignore, sql, clang-format, r, java, xml, orc, svg, cfg, avsc, h, proto, clang-tidy
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
py0% | 0% | 0% | 65% | 34%
cc0% | 0% | 0% | 14% | 85%
orc0% | 0% | 0% | 0% | 100%
html0% | 0% | 0% | 0% | 100%
sql0% | 0% | 0% | 0% | 100%
h0% | 0% | 0% | 0% | 100%
avsc0% | 0% | 0% | 0% | 100%
proto0% | 0% | 0% | 0% | 100%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
java0% | 0% | 0% | 1% | 98%
cpp0% | 0% | 0% | 12% | 87%
python0% | 0% | 0% | 82% | 17%
build0% | 0% | 0% | 0% | 100%
ROOT0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 23)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
conf.py
in java/source
 36 - 2022-01-25 2024-11-30 17 5 davi.sarces@gmail.com petridish@gmail.com
javadoctest.py
in java/ext
 109 5 2022-01-25 2025-01-28 11 5 amol@turbogears.org petridish@gmail.com
conf.py
in python/source
 28 - 2021-07-28 2024-04-16 7 6 amol@turbogears.org petridish@gmail.com
datasets.cc
in cpp/code
 117 3 2021-10-27 2022-08-09 6 3 weston.pace@gmail.com paliwalashish@gmail.com
conf.py
in cpp/source
 28 - 2021-08-23 2024-04-16 5 4 weston.pace@gmail.com petridish@gmail.com
index.html
in build
 63 - 2021-07-28 2022-12-21 5 5 amol@turbogears.org jorisvandenbossche@gmail.com
common.cc
in cpp/code
 140 11 2021-08-23 2022-07-06 5 2 weston.pace@gmail.com li.davidm96@gmail.com
flight.cc
in cpp/code
 312 14 2022-02-09 2025-01-21 5 3 li.davidm96@gmail.com petridish@gmail.com
basic_arrow.cc
in cpp/code
 92 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
99 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
common.h
in cpp/code
 27 - 2021-08-23 2021-10-27 3 1 weston.pace@gmail.com weston.pace@gmail.com
layout.html
in cpp/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
layout.html
in python/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
layout.html
in java/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
h2-dml.sql
in java/thirdpartydeps/jdbc
 12 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
15 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
main.cc
in cpp/code
 21 1 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
h2-ddl.sql
in java/thirdpartydeps/jdbc
 21 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
proto
helloworld.proto
in cpp/code/protos
 26 - 2022-02-25 2022-02-25 1 1 willjones127@gmail.com willjones127@gmail.com
user.avsc
in java/thirdpartydeps/avro
 26 - 2022-08-04 2022-08-04 1 1 paliwalashish@gmail.com paliwalashish@gmail.com
recipeext.py
in cpp/ext
 65 4 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
66 - 2022-12-21 2022-12-21 1 1 raulcumplido@gmail.com raulcumplido@gmail.com
orc
data1-zlib.orc
in java/thirdpartydeps/orc
 8847 - 2022-10-27 2022-10-27 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
Files With Most Contributors (Top 23)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
conf.py
in python/source
 28 - 2021-07-28 2024-04-16 7 6 amol@turbogears.org petridish@gmail.com
conf.py
in java/source
 36 - 2022-01-25 2024-11-30 17 5 davi.sarces@gmail.com petridish@gmail.com
javadoctest.py
in java/ext
 109 5 2022-01-25 2025-01-28 11 5 amol@turbogears.org petridish@gmail.com
index.html
in build
 63 - 2021-07-28 2022-12-21 5 5 amol@turbogears.org jorisvandenbossche@gmail.com
conf.py
in cpp/source
 28 - 2021-08-23 2024-04-16 5 4 weston.pace@gmail.com petridish@gmail.com
datasets.cc
in cpp/code
 117 3 2021-10-27 2022-08-09 6 3 weston.pace@gmail.com paliwalashish@gmail.com
flight.cc
in cpp/code
 312 14 2022-02-09 2025-01-21 5 3 li.davidm96@gmail.com petridish@gmail.com
basic_arrow.cc
in cpp/code
 92 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
99 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
common.cc
in cpp/code
 140 11 2021-08-23 2022-07-06 5 2 weston.pace@gmail.com li.davidm96@gmail.com
common.h
in cpp/code
 27 - 2021-08-23 2021-10-27 3 1 weston.pace@gmail.com weston.pace@gmail.com
orc
data1-zlib.orc
in java/thirdpartydeps/orc
 8847 - 2022-10-27 2022-10-27 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
h2-dml.sql
in java/thirdpartydeps/jdbc
 12 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
h2-ddl.sql
in java/thirdpartydeps/jdbc
 21 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
user.avsc
in java/thirdpartydeps/avro
 26 - 2022-08-04 2022-08-04 1 1 paliwalashish@gmail.com paliwalashish@gmail.com
layout.html
in java/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
15 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
layout.html
in python/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
66 - 2022-12-21 2022-12-21 1 1 raulcumplido@gmail.com raulcumplido@gmail.com
main.cc
in cpp/code
 21 1 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
proto
helloworld.proto
in cpp/code/protos
 26 - 2022-02-25 2022-02-25 1 1 willjones127@gmail.com willjones127@gmail.com
recipeext.py
in cpp/ext
 65 4 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
layout.html
in cpp/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
Files With Least Contributors (Top 23)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
orc
data1-zlib.orc
in java/thirdpartydeps/orc
 8847 - 2022-10-27 2022-10-27 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
66 - 2022-12-21 2022-12-21 1 1 raulcumplido@gmail.com raulcumplido@gmail.com
recipeext.py
in cpp/ext
 65 4 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
common.h
in cpp/code
 27 - 2021-08-23 2021-10-27 3 1 weston.pace@gmail.com weston.pace@gmail.com
user.avsc
in java/thirdpartydeps/avro
 26 - 2022-08-04 2022-08-04 1 1 paliwalashish@gmail.com paliwalashish@gmail.com
proto
helloworld.proto
in cpp/code/protos
 26 - 2022-02-25 2022-02-25 1 1 willjones127@gmail.com willjones127@gmail.com
h2-ddl.sql
in java/thirdpartydeps/jdbc
 21 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
main.cc
in cpp/code
 21 1 2021-08-23 2021-08-23 1 1 weston.pace@gmail.com weston.pace@gmail.com
15 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
h2-dml.sql
in java/thirdpartydeps/jdbc
 12 - 2022-08-23 2022-08-23 1 1 davi.sarces@gmail.com davi.sarces@gmail.com
layout.html
in java/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
layout.html
in python/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
layout.html
in cpp/source/_templates
 6 - 2022-12-21 2022-12-21 1 1 jorisvandenbossche@gmail.com jorisvandenbossche@gmail.com
common.cc
in cpp/code
 140 11 2021-08-23 2022-07-06 5 2 weston.pace@gmail.com li.davidm96@gmail.com
flight.cc
in cpp/code
 312 14 2022-02-09 2025-01-21 5 3 li.davidm96@gmail.com petridish@gmail.com
datasets.cc
in cpp/code
 117 3 2021-10-27 2022-08-09 6 3 weston.pace@gmail.com paliwalashish@gmail.com
99 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
basic_arrow.cc
in cpp/code
 92 6 2021-08-23 2022-12-12 4 3 weston.pace@gmail.com raulcumplido@gmail.com
conf.py
in cpp/source
 28 - 2021-08-23 2024-04-16 5 4 weston.pace@gmail.com petridish@gmail.com
javadoctest.py
in java/ext
 109 5 2022-01-25 2025-01-28 11 5 amol@turbogears.org petridish@gmail.com
index.html
in build
 63 - 2021-07-28 2022-12-21 5 5 amol@turbogears.org jorisvandenbossche@gmail.com
conf.py
in java/source
 36 - 2022-01-25 2024-11-30 17 5 davi.sarces@gmail.com petridish@gmail.com
conf.py
in python/source
 28 - 2021-07-28 2024-04-16 7 6 amol@turbogears.org petridish@gmail.com
Correlations

File Size vs. Number of Changes: 23 points

java/ext/javadoctest.py x: 109 lines of code y: 11 # changes cpp/code/flight.cc x: 312 lines of code y: 5 # changes java/source/conf.py x: 36 lines of code y: 17 # changes cpp/source/conf.py x: 28 lines of code y: 5 # changes python/source/conf.py x: 28 lines of code y: 7 # changes build/index_dev.html x: 66 lines of code y: 1 # changes build/index.html x: 63 lines of code y: 5 # changes cpp/source/_templates/layout.html x: 6 lines of code y: 1 # changes cpp/code/basic_arrow.cc x: 92 lines of code y: 4 # changes cpp/code/creating_arrow_objects.cc x: 99 lines of code y: 4 # changes java/thirdpartydeps/orc/data1-zlib.orc x: 8847 lines of code y: 1 # changes java/thirdpartydeps/jdbc/h2-ddl.sql x: 21 lines of code y: 1 # changes cpp/code/datasets.cc x: 117 lines of code y: 6 # changes cpp/code/common.cc x: 140 lines of code y: 5 # changes cpp/code/common.h x: 27 lines of code y: 3 # changes
17.0
# changes
  min: 1.0
  average: 3.65
  25th percentile: 1.0
  median: 1.0
  75th percentile: 5.0
  max: 17.0
0 8847.0
lines of code
min: 6.0 | average: 442.09 | 25th percentile: 21.0 | median: 28.0 | 75th percentile: 99.0 | max: 8847.0

Number of Contributors vs. Number of Changes: 23 points

java/ext/javadoctest.py x: 5 # contributors y: 11 # changes cpp/code/flight.cc x: 3 # contributors y: 5 # changes java/source/conf.py x: 5 # contributors y: 17 # changes cpp/source/conf.py x: 4 # contributors y: 5 # changes python/source/conf.py x: 6 # contributors y: 7 # changes build/index_dev.html x: 1 # contributors y: 1 # changes build/index.html x: 5 # contributors y: 5 # changes cpp/code/basic_arrow.cc x: 3 # contributors y: 4 # changes cpp/code/datasets.cc x: 3 # contributors y: 6 # changes cpp/code/common.cc x: 2 # contributors y: 5 # changes cpp/code/common.h x: 1 # contributors y: 3 # changes
17.0
# changes
  min: 1.0
  average: 3.65
  25th percentile: 1.0
  median: 1.0
  75th percentile: 5.0
  max: 17.0
0 6.0
# contributors
min: 1.0 | average: 2.26 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 3.0 | max: 6.0

Number of Contributors vs. File Size: 23 points

java/ext/javadoctest.py x: 5 # contributors y: 109 lines of code cpp/code/flight.cc x: 3 # contributors y: 312 lines of code java/source/conf.py x: 5 # contributors y: 36 lines of code cpp/source/conf.py x: 4 # contributors y: 28 lines of code python/source/conf.py x: 6 # contributors y: 28 lines of code build/index_dev.html x: 1 # contributors y: 66 lines of code cpp/source/_templates/layout.html x: 1 # contributors y: 6 lines of code cpp/code/basic_arrow.cc x: 3 # contributors y: 92 lines of code java/thirdpartydeps/orc/data1-zlib.orc x: 1 # contributors y: 8847 lines of code cpp/code/datasets.cc x: 3 # contributors y: 117 lines of code cpp/code/common.cc x: 2 # contributors y: 140 lines of code
8847.0
lines of code
  min: 6.0
  average: 442.09
  25th percentile: 21.0
  median: 28.0
  75th percentile: 99.0
  max: 8847.0
0 6.0
# contributors
min: 1.0 | average: 2.26 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 3.0 | max: 6.0