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Using FRED data to test where oil prices are statistically significant across inflation, unemployment, payrolls, industrial production, and GDP, and how those effects depend on economic conditions.
National average gas prices reached $3.84 a gallon, a 32% increase in one month. A normalized comparison of Brent crude and major oil producers shows what markets may be pricing in.
A data-driven look at how U.S. monetary policy has evolved across Fed chairmanships, from Volcker's disinflation to Powell's pandemic-era policy, using FRED economic data.
A hands-on walkthrough of exploratory data analysis using R's built-in Iris dataset — aggregate functions, median comparisons, and what the numbers actually tell us about species differentiation.
A practical guide to generating sequences, running simulations, and working with random numbers in R — covering seq(), sample(), runif(), and when each tool is the right one.
A hands-on walkthrough using real Chipotle order data — loading, aggregating, and visualizing purchase patterns with R and ggplot2.
Analytics engineer turning fragmented tidbits into confidence: messy data structured, patterns caught early, answers made plain with AI.
Copyright 2026 Christopher A. Rotunno. All Rights Reserved
