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Real-World Data Analysis, Step by Step: A New Analyst's Hands-On Guide to SAS, R, Python, and Excel
Paperback
ApplicationsDatabasesProgramming
ISBN13: 9781965630358
Publisher: Jiazheng Chen
Published: Jun 6 2026
Pages: 246
Weight: 0.85
Height: 0.67 Width: 5.50 Depth: 8.50
Language: English
Most data-analysis books teach one tool. The real job demands four.
In the working world, analysts rarely choose their software. A hospital runs on SAS, a research lab on R, a startup on Python, and almost every office on Excel. The same analytical idea-load the data, summarize it, model it, explain it-has to travel across all of them. Real-World Data Analysis, Step by Step teaches that idea in all four tools at once, side by side, so the concept stays fixed while you learn to express it in whichever tool the job puts in front of you.
Written for the new analyst, this hands-on guide walks through a complete data project from the first question to the final presentation. Every technique is shown four ways-SAS, then R, then Python, then Excel-then explained in plain language, worked through by hand, and pressure-tested with common mistake warnings and on-the-job tips drawn from real workplaces. You'll practice on ready-to-run datasets across four domains-healthcare, finance, business, and education-and get the same answer in every tool, with cross-language notes that explain exactly why defaults sometimes differ.
Inside, you'll learn how to:
- Run a real data project from start to finish-and keep it reproducible
- Collect, clean, and prepare messy real-world data
- Summarize data with descriptive statistics and probability distributions
- Draw conclusions with confidence intervals, hypothesis tests, and regression
- Work with time series and build honest forecasts
- Apply the basics of machine learning-and take a first look at deep learning and AI
- Practice data ethics, fairness, and responsible analysis
- Build clear charts, write tight reports, and present with confidence
- Tie it all together in a full, end-to-end capstone project
Whether you're starting your first analyst role, switching careers, or you simply want to become fluent across the tools your team actually uses, this book gives you the concepts, the code, and the judgment to do real analysis-correctly, and with confidence.
Perfect for aspiring and early-career data analysts, students and career-changers, bootcamp learners, and any professional who needs to move comfortably between SAS, R, Python, and Excel.
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