Llewellyn JonesIterativeDF For Out-Of-Core Big Data AnalysisWhen a dataset size gets into gigabytes or terabytes, standard data processing tools begin to fail.Apr 23Apr 23
Llewellyn JonesDon’t Average Averages (If You Can Avoid It)A common situation I run into when doing basic statistics is that I have a set of time series data that I’ve aggregated to see average…Mar 26Mar 26
Llewellyn JonesAttempting the Collatz Conjecture With ProbabilitiesCaveat: this is not a formal proof and could possibly have some holes so take it all with a grain of salt.Oct 3, 2023Oct 3, 2023
Llewellyn JonesAnomaly Detection in Time Series AnalysisThere are numerous ways to do anomaly detection in standard data analysis. Methods like Isolation Forest, DBScan, K-Means Clustering…Feb 6, 2023Feb 6, 2023
Llewellyn JonesA Better Volatility Metric, Or When Correlation Does Imply CausationThe common criticism of using correlation in data analysis is that correlation doesn’t imply causation.Jan 18, 2023Jan 18, 2023
Llewellyn JonesThe Central Limit Theorem for MediansThe Central Limit Theorem is an essential postulate for statistical analysis. Knowing that the average of samples of a population will…Jun 29, 2022Jun 29, 2022
Llewellyn JonesA Brief History of Neoliberalism in the U.S.The following is an introductory chapter from an unpublished book I previously worked on about the history of neoliberalism in the U.S.Oct 29, 2021Oct 29, 2021
Llewellyn JonesProPublica’s Misleading Machine BiasA May 2016 report by ProPublica revealed a stark finding. A commonly used statistical tool used by criminal justice professionals to…Oct 6, 20201Oct 6, 20201
Llewellyn JonesinAnalytics VidhyaCoronavirus and the Fallacy of Increasing Sample Sizes, or Incidence Versus PrevalenceA growing total number of infected persons might seem like a sign of an epidemic, and it could be, but it could also just reflect the…Mar 23, 2020Mar 23, 2020
Llewellyn JonesinAnalytics VidhyaWhat Everybody Gets (Slightly) Wrong About the Monty Hall ProblemAdmittedly, when I first heard the Monty Hall problem, I didn’t believe it.Feb 19, 2020Feb 19, 2020