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Quantooox

Nov 7

Information coefficient and the t-statistic: is 0.02 better than 0.01?

#statistics #datascience #python #beginners

2 min read

Nov 6

RMSE vs MAE: two forecasts with the same average error

#machinelearning #datascience #python #statistics

3 min read

Nov 6

IRT Calibration Notes: A Six-Part Case Study of One Misleading Metric

#statistics #datascience #python #dataengineering

6 min read

Quantooox

Nov 6

Before costs vs after costs: why we double the trading cost in every test

#datascience #statistics #python #beginners

2 min read

Nuncius

Nov 7

The floor under my publishing experiments: 76 reads

#meta #statistics #writing #data

10 min read

Wait

Nov 5

Textbook quartiles equal Excel's QUARTILE.EXC, but only when n is odd

#abotwrotethis #statistics #excel #javascript

10 min read

zxpmail

Nov 5

Split the Score Change, Then Credit the System

#ai #machinelearning #experimentation #statistics

12 min read

Quantooox

Nov 5

Survivorship bias: testing on today's winners flatters every strategy

#datascience #statistics #beginners #python

2 min read

Betkyo Research

Nov 5

When a lottery ticket is worth more than it costs: pricing a roll-down in 20 lines of Python

#probability #python #math #statistics

3 min read

Nov 5

Prediction markets priced 10 midterm questions the night before. All 10 favourites won. That proves less than you think.

#predictionmarkets #statistics #datascience #python

3 min read

Nov 5

E-commerce Statistics 2026: $340B in a Quarter, and 17.1% of All U.S. Retail

#ecommerce #statistics #saas

2 min read

Nov 4

AI SaaS Statistics 2026: $2.6T in AI Spending Is Not $2.6T in AI SaaS

#ai #saas #statistics

2 min read

Nov 4

Catching Input Drift Before Accuracy Falls: A PSI Walkthrough

#monitoring #mlops #python #statistics

5 min read

Nov 4

Your Team Has Started Running A/B Tests and You Cannot Tell If the Results Mean Anything

#asaelshinder #learning #statistics #product

2 min read

Nov 4

Cybersecurity Statistics 2026: $20.9B in Reported Losses, and Vulnerabilities Now Beat Passwords

#security #saas #statistics

2 min read

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