apache / datasketches-vector
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 16 files with 1,419 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)
    • 1 file changed 6-20 times (280 lines of code)
    • 15 files changed 1-5 times (1,139 lines of code)
0% | 0% | 0% | 19% | 80%
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 16 files with 1,419 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)
    • 0 files changed by 6-10 contributors (0 lines of code)
    • 16 files changed by 2-5 contributors (1,419 lines of code)
    • 0 files changed by 1 contributor (0 lines of code)
0% | 0% | 0% | 100% | 0%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
java, xml, txt, gitignore, md, yaml
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
xml0% | 0% | 0% | 92% | 7%
java0% | 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
tools0% | 0% | 0% | 92% | 7%
src0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 16)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
280 - 2017-09-23 2019-12-02 8 5 jmalkin@yahoo-inc.com leerho@users.noreply.github...
MatrixImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/matrix
 172 11 2019-10-17 2020-01-10 5 3 leerho@users.noreply.github... leerho@users.noreply.github...
23 - 2017-09-23 2019-11-23 4 3 jmalkin@yahoo-inc.com apete@users.noreply.github.com
MatrixOps.java
in src/main/java/org/apache/datasketches/vector/decomposition
 54 3 2019-10-17 2019-11-23 4 3 leerho@users.noreply.github... apete@users.noreply.github.com
Matrix.java
in src/main/java/org/apache/datasketches/vector/matrix
 79 6 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
PreambleUtil.java
in src/main/java/org/apache/datasketches/vector/decomposition
 129 22 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
MatrixOpsImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 148 7 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
FrequentDirections.java
in src/main/java/org/apache/datasketches/vector/decomposition
 293 19 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
package-info.java
in src/main/java/org/apache/datasketches/vector
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/matrix
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/decomposition
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixType.java
in src/main/java/org/apache/datasketches/vector/matrix
 14 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
SVDAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 16 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixBuilder.java
in src/main/java/org/apache/datasketches/vector/matrix
 20 4 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixFamily.java
in src/main/java/org/apache/datasketches/vector
 71 10 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixPreambleUtil.java
in src/main/java/org/apache/datasketches/vector/matrix
 117 20 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
Files With Most Contributors (Top 16)
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
280 - 2017-09-23 2019-12-02 8 5 jmalkin@yahoo-inc.com leerho@users.noreply.github...
MatrixImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/matrix
 172 11 2019-10-17 2020-01-10 5 3 leerho@users.noreply.github... leerho@users.noreply.github...
23 - 2017-09-23 2019-11-23 4 3 jmalkin@yahoo-inc.com apete@users.noreply.github.com
MatrixOpsImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 148 7 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
MatrixOps.java
in src/main/java/org/apache/datasketches/vector/decomposition
 54 3 2019-10-17 2019-11-23 4 3 leerho@users.noreply.github... apete@users.noreply.github.com
Matrix.java
in src/main/java/org/apache/datasketches/vector/matrix
 79 6 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
FrequentDirections.java
in src/main/java/org/apache/datasketches/vector/decomposition
 293 19 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
PreambleUtil.java
in src/main/java/org/apache/datasketches/vector/decomposition
 129 22 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
SVDAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 16 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/decomposition
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixBuilder.java
in src/main/java/org/apache/datasketches/vector/matrix
 20 4 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixType.java
in src/main/java/org/apache/datasketches/vector/matrix
 14 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixPreambleUtil.java
in src/main/java/org/apache/datasketches/vector/matrix
 117 20 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/matrix
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixFamily.java
in src/main/java/org/apache/datasketches/vector
 71 10 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
Files With Least Contributors (Top 16)
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
FrequentDirections.java
in src/main/java/org/apache/datasketches/vector/decomposition
 293 19 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
PreambleUtil.java
in src/main/java/org/apache/datasketches/vector/decomposition
 129 22 2019-10-17 2020-01-10 4 2 leerho@users.noreply.github... leerho@users.noreply.github...
MatrixPreambleUtil.java
in src/main/java/org/apache/datasketches/vector/matrix
 117 20 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixFamily.java
in src/main/java/org/apache/datasketches/vector
 71 10 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixBuilder.java
in src/main/java/org/apache/datasketches/vector/matrix
 20 4 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
SVDAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 16 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixType.java
in src/main/java/org/apache/datasketches/vector/matrix
 14 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/decomposition
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector/matrix
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
package-info.java
in src/main/java/org/apache/datasketches/vector
 1 - 2019-10-17 2019-11-23 3 2 leerho@users.noreply.github... apete@users.noreply.github.com
MatrixImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/matrix
 172 11 2019-10-17 2020-01-10 5 3 leerho@users.noreply.github... leerho@users.noreply.github...
MatrixOpsImplOjAlgo.java
in src/main/java/org/apache/datasketches/vector/decomposition
 148 7 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
Matrix.java
in src/main/java/org/apache/datasketches/vector/matrix
 79 6 2019-10-17 2019-12-22 4 3 leerho@users.noreply.github... leerho@users.noreply.github...
MatrixOps.java
in src/main/java/org/apache/datasketches/vector/decomposition
 54 3 2019-10-17 2019-11-23 4 3 leerho@users.noreply.github... apete@users.noreply.github.com
23 - 2017-09-23 2019-11-23 4 3 jmalkin@yahoo-inc.com apete@users.noreply.github.com
280 - 2017-09-23 2019-12-02 8 5 jmalkin@yahoo-inc.com leerho@users.noreply.github...
Correlations

File Size vs. Number of Changes: 16 points

src/main/java/org/apache/datasketches/vector/decomposition/FrequentDirections.java x: 293 lines of code y: 4 # changes src/main/java/org/apache/datasketches/vector/decomposition/PreambleUtil.java x: 129 lines of code y: 4 # changes src/main/java/org/apache/datasketches/vector/matrix/MatrixImplOjAlgo.java x: 172 lines of code y: 5 # changes src/main/java/org/apache/datasketches/vector/decomposition/MatrixOpsImplOjAlgo.java x: 148 lines of code y: 4 # changes src/main/java/org/apache/datasketches/vector/matrix/Matrix.java x: 79 lines of code y: 4 # changes tools/SketchesCheckstyle.xml x: 280 lines of code y: 8 # changes src/main/java/org/apache/datasketches/vector/MatrixFamily.java x: 71 lines of code y: 3 # changes src/main/java/org/apache/datasketches/vector/decomposition/MatrixOps.java x: 54 lines of code y: 4 # changes src/main/java/org/apache/datasketches/vector/decomposition/SVDAlgo.java x: 16 lines of code y: 3 # changes src/main/java/org/apache/datasketches/vector/decomposition/package-info.java x: 1 lines of code y: 3 # changes src/main/java/org/apache/datasketches/vector/matrix/MatrixBuilder.java x: 20 lines of code y: 3 # changes src/main/java/org/apache/datasketches/vector/matrix/MatrixPreambleUtil.java x: 117 lines of code y: 3 # changes src/main/java/org/apache/datasketches/vector/matrix/MatrixType.java x: 14 lines of code y: 3 # changes tools/FindBugsExcludeFilter.xml x: 23 lines of code y: 4 # changes
8.0
# changes
  min: 3.0
  average: 3.81
  25th percentile: 3.0
  median: 3.5
  75th percentile: 4.0
  max: 8.0
0 293.0
lines of code
min: 1.0 | average: 88.69 | 25th percentile: 14.5 | median: 62.5 | 75th percentile: 143.25 | max: 293.0

Number of Contributors vs. Number of Changes: 16 points

src/main/java/org/apache/datasketches/vector/decomposition/FrequentDirections.java x: 2 # contributors y: 4 # changes src/main/java/org/apache/datasketches/vector/matrix/MatrixImplOjAlgo.java x: 3 # contributors y: 5 # changes src/main/java/org/apache/datasketches/vector/decomposition/MatrixOpsImplOjAlgo.java x: 3 # contributors y: 4 # changes tools/SketchesCheckstyle.xml x: 5 # contributors y: 8 # changes src/main/java/org/apache/datasketches/vector/MatrixFamily.java x: 2 # contributors y: 3 # changes
8.0
# changes
  min: 3.0
  average: 3.81
  25th percentile: 3.0
  median: 3.5
  75th percentile: 4.0
  max: 8.0
0 5.0
# contributors
min: 2.0 | average: 2.5 | 25th percentile: 2.0 | median: 2.0 | 75th percentile: 3.0 | max: 5.0

Number of Contributors vs. File Size: 16 points

src/main/java/org/apache/datasketches/vector/decomposition/FrequentDirections.java x: 2 # contributors y: 293 lines of code src/main/java/org/apache/datasketches/vector/decomposition/PreambleUtil.java x: 2 # contributors y: 129 lines of code src/main/java/org/apache/datasketches/vector/matrix/MatrixImplOjAlgo.java x: 3 # contributors y: 172 lines of code src/main/java/org/apache/datasketches/vector/decomposition/MatrixOpsImplOjAlgo.java x: 3 # contributors y: 148 lines of code src/main/java/org/apache/datasketches/vector/matrix/Matrix.java x: 3 # contributors y: 79 lines of code tools/SketchesCheckstyle.xml x: 5 # contributors y: 280 lines of code src/main/java/org/apache/datasketches/vector/MatrixFamily.java x: 2 # contributors y: 71 lines of code src/main/java/org/apache/datasketches/vector/decomposition/MatrixOps.java x: 3 # contributors y: 54 lines of code src/main/java/org/apache/datasketches/vector/decomposition/SVDAlgo.java x: 2 # contributors y: 16 lines of code src/main/java/org/apache/datasketches/vector/decomposition/package-info.java x: 2 # contributors y: 1 lines of code src/main/java/org/apache/datasketches/vector/matrix/MatrixBuilder.java x: 2 # contributors y: 20 lines of code src/main/java/org/apache/datasketches/vector/matrix/MatrixPreambleUtil.java x: 2 # contributors y: 117 lines of code src/main/java/org/apache/datasketches/vector/matrix/MatrixType.java x: 2 # contributors y: 14 lines of code tools/FindBugsExcludeFilter.xml x: 3 # contributors y: 23 lines of code
293.0
lines of code
  min: 1.0
  average: 88.69
  25th percentile: 14.5
  median: 62.5
  75th percentile: 143.25
  max: 293.0
0 5.0
# contributors
min: 2.0 | average: 2.5 | 25th percentile: 2.0 | median: 2.0 | 75th percentile: 3.0 | max: 5.0