Christopher A. Rotunno
•Sep 18, 2024
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 collection of blog posts about r
Christopher A. Rotunno
•Sep 18, 2024
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.
Christopher A. Rotunno
•Sep 18, 2024
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.
Christopher A. Rotunno
•Aug 26, 2024
A hands-on walkthrough using real Chipotle order data — loading, aggregating, and visualizing purchase patterns with R and ggplot2.
Christopher A. Rotunno
•Aug 26, 2024
Random sampling, reproducibility, subsetting, and counting outcomes — all through a simple coin flip simulation. The concepts here apply everywhere in data analysis.
Christopher A. Rotunno
•Aug 25, 2024
Generate synthetic data, compute descriptive stats, filter by condition, and cap outliers using winsorization — the core data cleaning toolkit in base R.
Data analytics engineer and BI leader. Building pipelines, models, and dashboards that turn raw data into clear decisions.
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