Stack Exchange — stats.stackexchange.com

The content of stats.stackexchange.com (https://stats.stackexchange.com/), a Stack Exchange question-and-answer site, as published in the Stack Exchange Data Dump of April 2024 on the Internet Archive. The posts table holds 1,245,383 rows: 425,735 posts (213,761 questions, 208,986 answers, 1,477 tag wiki excerpts, 1,477 tag wikis, 6 posts of type 3, 23 posts of type 6 and 5 posts of type 7) and 819,648 comments, written between 2 February 2009 and 31 March 2024. Beside it are 345,754 user accounts, 1,747,225 votes, 612,258 badges awarded, 1,612 tags, 1,525,713 post revisions and 86,919 links between posts. Every answer keeps the question it answers and every comment the post it was written on, so the threads can be rebuilt. The Internet Archive item describes the dump as anonymised; the votes table names the voter in only 6,963 rows.

#Expertise network#Stack exchange data dump#Statistics

Download data package README Original files as received BibTeX JSONSimilar datasets

Analytics

The interactive network needs JavaScript.

· graph.json

The full graph has 82,658 nodes; this view shows the 1,000-node sample the pipeline drew for display. Node size is centrality, colour is community.

82.7K
Nodes
181.1K
Edges
2.65e-05
Density
1.6K
Components
-0.09232
Assortativity
0.4%
Reciprocity
46.3K
Bridges
Most central nodes
10050.00299
4086030.00265
2530.00264
91620.00232
289860.00215
124920.00208
1137770.002
27980.00188
536900.00185
50.00183
Content metrics

1,245,383 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

x scoreμ 1.465 ± 6.203
min -59max 1.9K
x view countμ 2.3K ± 12.6K
min 3max 1.7M
x answer countμ 0.978 ± 1.144
min 0max 153
x comment countμ 1.926 ± 2.728
min 0max 66
x favorite countμ 0.01 ± 0.105
min 0max 2
9.9
Flesch–Kincaid grade
US school grade level
10.8
Automated readability index
Frequent terms
datamodeltestdistributionusemeanquestiontimevalueregressionlikesamplevaluesfracvariablevariablesfunctiondifferentrandomexamplerightwantanswernumbercaseprobabilitysetknowwayproblemthinkdonneedthetalinearerrorvariancemodelssigmagivenlogbetaleftfindanalysisstandardeffectpointmatrixestimate
Topic clusters

Topic 0

distribution
normal
random
function
density
probability
poisson
variable

Topic 1

matrix
covariance
correlation
pca
component
gaussian
vector
variance

Topic 2

series
time
forecast
model
arima
stationary
trend
datum

Topic 3

validation
feature
training
set
tree
fold
model
forest

Topic 4

network
layer
neural
gradient
output
input
function
loss

Topic 5

answer
question
comment
post
link
thread
think
ask

Topic 6

effect
model
variable
group
treatment
level
interaction
control

Topic 7

thank
answer
question
helpful
appreciate
comment
help
clarification

Topic 8

regression
linear
variable
coefficient
multiple
model
independent
dependent

Topic 9

probability
coin
player
card
win
flip
number
head

Topic 10

cluster
distance
clustering
method
similarity
silhouette
centroid
algorithm

Topic 11

likelihood
posterior
mcmc
function
prior
estimator
parameter
log
Show all 19 topics

Topic 12

datum
csv
row
point
file
value
add
set

Topic 13

bayesian
frequentist
prior
statistic
people
think
question
probability

Topic 14

formula
value
notation
calculate
write
equation
correct
second

Topic 15

sample
population
test
size
distribution
mean
hypothesis
value

Topic 16

chi
test
square
rank
wilcoxon
smoker
fisher
distribution

Topic 17

survival
time
hazard
event
cox
covariate
censor
model

Topic 18

anova
repeat
test
factor
measure
group
model
residual
Top hashtags
#12.5K
#22K
#3943
#create560
#r524
#generate463
#plot449
#the418
#4401
#i396
#c386
#set332
#this304
#fit279
#5271
#model270
#number269
#0267
#calculate251
#compute250
Top emoji
𝛘3

Computed over the full corpus.

Record

Catalog key
stackexchange-stats-stackexchange-com
Authors
Stack Exchange, Inc.
Year
2024
Source paper
Stack Exchange Data Dump
License
CC BY-SA 2.5 / 3.0 / 4.0 (by contribution date) (CC-BY-SA-2.5 AND CC-BY-SA-3.0 AND CC-BY-SA-4.0)
Records
1,460,188
Nodes
82,658
Edges
181,080 (directed)
Nodes are
user (Stack Exchange account)
Edges are
answer collaboration (A answered B's question)
Attributes
nodes have attributes; edges have attributes
Text corpus
question titles, post bodies, comment text, tag names
Languages
en
Collected
2009/2024 (2000s, 2010s, 2020s)
Tasks
From the graph: link prediction, community detection
Region
Global (inferred: the platform is used worldwide)

Provenance

Originally published at
https://archive.org/details/stackexchange link checked
Original files as received
The source files, unconverted, kept for reference: mirrored on echo.directory on 2026-10-09, 568.9 MB across 1 files. Checksums in MANIFEST.json. For use, start with the data package below.
Data package
Version 1.0.0 of this dataset as an ECHO Data Package: posts (1,245,383 rows), users (345,754 rows), x_votes (1,747,225 rows), x_badges (612,258 rows), x_tags (1,612 rows), x_post_history (1,525,713 rows), x_post_links (86,919 rows).
Structure
Temporal (timestamped), Node attributes, Text, Threaded conversations

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@misc{stackexchange_2024,
  title     = {Stack Exchange Data Dump},
  author    = {{Stack Exchange, Inc.}},
  year      = {2024},
  month     = {apr},
  publisher = {Internet Archive},
  url       = {https://archive.org/details/stackexchange}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Stack Exchange, Inc. (2024). Stack Exchange — stats.stackexchange.com [Data set]. https://stackexchange-stats.echo.directory/

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Stack Exchange, Inc. Stack Exchange — stats.stackexchange.com. 2024, stackexchange-stats.echo.directory/.

BibTeX · RIS · CSL-JSON

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