8.6 A professional EDA report

A complete report commonly contains:

1. purpose and scope;
2. data overview and unit of analysis;
3. quality assessment;
4. cleaning, transformations, and feature engineering;
5. selected univariate findings;
6. purposeful bivariate and multivariate findings;
7. conclusions and limitations;
8. follow-up questions and project implications; and
9. appendices containing the current dictionary, references, and reproducible code or audit trail.

Use prose when a decision or interpretation requires explanation. Number and label tables and figures, and discuss each one in the text.

Common mistake: A visible difference is not automatically meaningful. Consider denominators, sample size, incomplete periods, multiple comparisons, data quality, and practical importance before treating a pattern as a finding.