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Christian PichicheroAug 31, 2026 • 4 min read
What a Clean Equity Curve Doesn't Prove
A backtest can look flawless and still be worthless evidence — here are the four specific ways it li...
#python#datascience#trading#statistics
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The Ops LogAug 27, 2026 • 6 min read
MCP server uptime isn't a spectrum: 78% never miss a day, 5.5% never answer
Everyone quotes MCP server health as one number. I have been quoting one too: about 92% of a fixed.....
#mcp#statistics#devops#datascience
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Christian PichicheroAug 31, 2026 • 4 min read
What Shuffling Your Trade History Actually Tells You (And What It Doesn't)
Monte Carlo resampling of closed trades reveals how much of your backtest's smoothness came from luc...
#python#statistics#datascience#trading
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Christian PichicheroSep 3, 2026 • 4 min read
The Fill Model Is Where Backtests Quietly Cheat
A walkthrough of the fill assumptions — mid-price fills, zero slippage, unlimited size at the touch,...
#python#trading#datascience#statistics
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Michael NocitoSep 1, 2026 • 16 min read
A/B Testing for Analysts: Sample Size First, Result Second
Detecting a 20 percent lift on a 4 percent baseline needs 10,317 visitors per arm. Checking a test t...
#statistics#dataanalysis#tutorial#beginners
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AureusAug 29, 2026 • 6 min read
Choice Leaks: I Tried to Generate 100 Random Digits and Failed in Four Measurable Ways
A consciousness test you can run in ten minutes: try to be random, then measure how you failed. I ra...
#ai#philosophy#python#statistics
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Michael NocitoSep 2, 2026 • 16 min read
Mean vs Median: When to Use Each, and When the Answer Changes
One mistyped order moves the mean 337.50 and the median 30. How each average is built, the question ...
#statistics#dataanalysis#tutorial#beginners
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Michael NocitoSep 2, 2026 • 15 min read
What Is a P-Value? Worked by Shuffling Nine Real Orders 126 Ways
Two regions differ by 168.50. All 126 possible reshuffles say 45 of them beat that by chance, so p i...
#statistics#dataanalysis#tutorial#beginners
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Michael NocitoSep 2, 2026 • 17 min read
Percentiles, the IQR and the 1.5 Outlier Rule: How to Flag a Bad Row
Quartiles by hand on sixteen orders, the IQR fence that flags a mistyped row, and why the same perce...
#statistics#dataanalysis#tutorial#beginners
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Michael NocitoSep 2, 2026 • 17 min read
Moving Averages: Smoothing a Series Without Smoothing Away the Truth
A 3-week average cuts the wobble from 237 to 101 and a 5-week one to 62. How to pick the window, whe...
#statistics#dataanalysis#tutorial#beginners
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FirmTapeAug 27, 2026 • 2 min read
How accurately can complex option trades be signed? First grading against exchange truth
To build a dealer book from the options tape you must decide, print by print, who bought. For simple...
#finance#trading#statistics#python
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Michael NocitoSep 1, 2026 • 16 min read
Confidence Intervals and the Margin of Error: Built From Four Numbers
Mean 618.13 on sixteen orders gives an interval of 491.94 to 744.31. How the margin of error is buil...
#statistics#dataanalysis#tutorial#beginners
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Michael NocitoSep 1, 2026 • 15 min read
Forecast Accuracy: MAE, RMSE, MAPE and the Month That Broke One of Them
Five measures on the same forecast. MAPE returns infinity because one month is zero, RMSE is nearly ...
#statistics#dataanalysis#tutorial#beginners
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AETHERCORE / Sora AttilasAug 29, 2026 • 6 min read
From 9,999 Sign Vectors to One maxT Threshold: Auditing GenesisCore v7
The line that matters most in our public reproduction script is not a p-value. It is the matrix...
#datascience#statistics#python#research
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4thwithmeAug 30, 2026 • 14 min read
A/B testing: the stat-sig problem
Everyone thinks they know what statistical significance means. Almost nobody does. A generic ecommer...
#statistics#abtesting#datascience#career
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Michael KantorAug 31, 2026 • 5 min read
State of AI Agents — March 2026
104,504 agents indexed across 15 registries — the 1st monthly pulse check on the AI agent ecosystem.
#agents#registry#statistics#monthlyrecap
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Muhammad Bin NazeerSep 3, 2026 • 2 min read
Why No repeat of Wimbledon heroics as Fery exits US Open in first round Matters for Sports Data Engineers
Why No repeat of Wimbledon heroics as Fery exits US Open in first round Matters for Sports...
#datascience#statistics#cricket#python
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Muhammad Bin NazeerAug 28, 2026 • 2 min read
How I Built a Real-Time Football Stats Tracker: Chelsea in talks to sign Atalanta defender Ahanor
How I Built a Real-Time Football Stats Tracker: Chelsea in talks to sign Atalanta defender...
#datascience#statistics#cricket#python
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Muhammad Bin NazeerAug 29, 2026 • 2 min read
I Scraped 100 Football Matches — Here Is What I Found: Suttons predictions v Royal Blood drummer Ben Thatcher
I Scraped 100 Football Matches — Here Is What I Found: Suttons predictions v Royal Blood...
#datascience#statistics#cricket#python
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Muhammad Bin NazeerAug 30, 2026 • 2 min read
Why England enjoy dominant day at Lords to close in on series win Matters for Sports Data Engineers
Why England enjoy dominant day at Lords to close in on series win Matters for Sports Data...
#datascience#statistics#cricket#python
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Muhammad Bin NazeerSep 1, 2026 • 2 min read
Why Robinsons rhythmical action reminiscent of McGrath Agnew Matters for Sports Data Engineers
Why Robinsons rhythmical action reminiscent of McGrath Agnew Matters for Sports Data...
#datascience#statistics#cricket#python
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shakti tiwari Aug 30, 2026 • 12 min read
Block Bootstrap Confidence Intervals for Backtest Metrics: How to Know If Your Edge Is Real
Block Bootstrap Confidence Intervals for Backtest Metrics: How to Know If Your Edge Is...
#backtesting#quant#python#statistics
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Devanshu BiswasAug 28, 2026 • 2 min read
A Clustering That Knows Nothing Scores 0.5033. One That Gets Half the Items Right Scores 0.3118.
Days 4, 15, 22, 25 and 49 of this series built clustering algorithms, and every one of them ended by...
#machinelearning#datascience#python#statistics
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Devanshu BiswasAug 29, 2026 • 2 min read
Two Groups With Identical ROC Curves, Identical TPR and FPR to the Last Bit, and a 13-Point Selection Gap
Measure a model on one dataset and you ask about accuracy. Measure it separately on two groups and a...
#machinelearning#datascience#statistics#python
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