File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).

Summary

Number of files: 166
Daily file updates (only one update per file and date counted): 600
First update: 2016-08-05
Latest update: 2022-01-23
Days between first and latest update: 1998 (285 weeks, estimated 1425 working days)
Active days (at least one file change): 1206
Data:

Organized per file

File Change History Overall

File Age Distribution Overall

Days since first update

There are 166 files with 47,114 lines of code in files.

158 files that are 366+ days old (46,548 lines of code)
5 files that are 181-365 days old (545 lines of code)
0 files that are 91-180 days old (0 lines of code)
3 files that are 31-90 days old (21 lines of code)
0 files that are 1-30 days old (0 lines of code)

Legend:

366+

181-365

91-180

31-90

1-30

Latest Change Distribution Overall

Days since last update

There are 166 files with 47,114 lines of code in files.

54 files have been last changed 366+ days ago (7,589 lines of code)
39 files have been last changed 181-365 days ago (13,551 lines of code)
22 files have been last changed 91-180 days ago (3,718 lines of code)
42 files have been last changed 31-90 days ago (15,090 lines of code)
9 files have been last changed 1-30 days ago (7,166 lines of code)

Legend:

366+

181-365

91-180

31-90

1-30

File Change History per File Extension

R, py, cpp, h, Rd, hpp, rst, md, yml, sh, svg, txt, i, json, ps1, in, cl, rda, cmake, cu, js, bat, vcxproj, editorconfig, ipynb, yaml, gitignore, Rmd, filters, gitmodules

File Age Distribution per Extension

Days since first update

366+

181-365

91-180

31-90

1-30

Latest Change Distribution per Extension

Days since last update

366+

181-365

91-180

31-90

1-30

File Change History per Logical Decomposition

primary

primary (file age distribution)

Days since first update

366+

181-365

91-180

31-90

1-30

primary (latest change distribution)

Days since last update

366+

181-365

91-180

31-90

1-30

Oldest Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
feature_histogram.hpp in src/treelearner	1109	36	250	2002	68
common.h in include/LightGBM/utils	1059	74	76	2002	90
gbdt.cpp in src/boosting	710	25	76	2002	144
regression_objective.hpp in src/objective	636	48	11	2002	54
sparse_bin.hpp in src/io	591	28	488	2002	59
dataset.h in include/LightGBM	479	41	76	2002	98
tree.h in include/LightGBM	471	52	194	2002	76
dense_bin.hpp in src/io	456	25	488	2002	50
config.h in include/LightGBM	351	7	59	2002	216
text_reader.h in include/LightGBM/utils	283	13	76	2002	32
binary_metric.hpp in src/metric	281	19	272	2002	38
socket_wrapper.hpp in src/network	276	18	26	2002	26
bin.h in include/LightGBM	267	14	118	2002	65
rank_objective.hpp in src/objective	266	17	272	2002	40
predictor.hpp in src/application	249	4	76	2002	61
gbdt.h in src/boosting	248	18	76	2002	104
regression_metric.hpp in src/metric	248	33	115	2002	41
split_info.hpp in src/treelearner	215	7	130	2002	23
network.h in include/LightGBM	183	6	130	2002	30
linkers.h in src/network	182	11	272	2002	20

Files Not Recently Changed (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
export.h in include/LightGBM	15	-	1024	1845	4
boosting.cpp in src/boosting	60	2	1024	1918	27
linkers_mpi.cpp in src/network	46	3	790	1710	8
objective_function.cpp in src/objective	88	-	705	1917	23
json11.h in include/LightGBM/utils	116	13	663	697	2
prediction_early_stop.h in include/LightGBM	19	-	605	1708	7
main.cpp in src	31	1	605	1904	11
objective_function.h in include/LightGBM	41	12	605	2002	31
pipeline_reader.h in include/LightGBM/utils	44	1	605	2002	17
application.h in include/LightGBM	46	1	605	2002	22
prediction_early_stop.cpp in src/boosting	66	4	605	1708	10
score_updater.hpp in src/boosting	77	7	605	2002	33
data_partition.hpp in src/treelearner	103	9	605	2002	26
map_metric.hpp in src/metric	134	5	605	1837	18
dart.hpp in src/boosting	146	6	605	1900	34
file_io.cpp in src/io	166	15	605	1434	16
json11.cpp in src/io	633	55	605	1378	16
make-r-def.R in R-package/inst	67	-	596	596	1
meta.h in include/LightGBM	51	-	582	2002	28
col_sampler.hpp in src/treelearner	183	7	579	697	7

Most Recently Created Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
lgb.drop_serialized.R in R-package/R	7	-	58	58	1
lgb.make_serializable.R in R-package/R	7	-	58	58	1
lgb.restore_handle.R in R-package/R	7	-	58	58	1
cmake FindLibR.cmake in cmake/modules	209	-	79	316	3
cmake IntegratedOpenCL.cmake in cmake	164	-	79	316	2
chunked_array.hpp in include/LightGBM/utils	106	13	309	316	2
i ChunkedArray_API_extensions.i in swig	23	-	309	316	2
cmake Sanitizer.cmake in cmake	43	-	79	325	4
linear_tree_learner.cpp in src/treelearner	326	4	301	403	7
linear_tree_learner.h in src/treelearner	103	3	389	403	3
dask.py in python-package/lightgbm	1080	35	14	405	55
common_legacy_solaris.h in include/LightGBM/utils	130	9	419	419	1
i pointer_manipulation.i in swig	93	-	360	433	2
train_share_states.cpp in src/io	388	7	385	444	4
train_share_states.h in include/LightGBM	188	11	434	444	4
ifaddrs_patch.cpp in src/network	97	2	480	480	1
ifaddrs_patch.h in src/network	18	-	480	480	1
histogram_16_64_256.cu in src/treelearner/kernels	832	-	272	498	2
cuda_tree_learner.cpp in src/treelearner	732	20	359	498	5
cuda_kernel_launcher.cu in src/treelearner	163	-	217	498	2

Most Recently Changed Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
basic.py in python-package/lightgbm	2381	144	9	1896	215
regression_objective.hpp in src/objective	636	48	11	2002	54
dask.py in python-package/lightgbm	1080	35	14	405	55
lgb.Booster.R in R-package/R	635	-	22	1849	70
lgb.cv.R in R-package/R	399	-	22	1849	70
lgb.train.R in R-package/R	236	-	22	1849	57
gpu_tree_learner.cpp in src/treelearner	918	20	23	1758	39
lgb.Dataset.R in R-package/R	605	3	25	1849	72
socket_wrapper.hpp in src/network	276	18	26	2002	26
c_api.h in include/LightGBM	433	1	32	1918	88
utils.R in R-package/R	175	-	33	1849	40
engine.py in python-package/lightgbm	329	7	36	1891	116
callback.py in python-package/lightgbm	186	8	36	1891	53
dataset_loader.cpp in src/io	1249	10	39	1914	107
sklearn.py in python-package/lightgbm	645	32	44	1889	168
setup.py in python-package	339	11	44	1889	72
install.libs.R in R-package/src	196	-	47	1701	37
callback.R in R-package/R	211	4	51	1849	33
lightgbm.R in R-package/R	74	1	55	1849	27
lightgbm_R.cpp in R-package/src	889	59	58	1849	33