First notebook

Author: mikeckennedy

code/09-agentic-ai/game-sales-analysis/data-summary.md

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+# Video Game Sales Dataset Summary
+
+## Dataset Overview
+
+This dataset contains comprehensive video game sales data with **16,600 entries** ranked by global sales performance. The data appears to cover games from 1984 to 2016, providing a substantial historical perspective on the video game industry.
+
+## Data Structure
+
+The dataset includes the following columns:
+
+- **Rank**: Sales ranking (1-16,600)
+- **Name**: Game title
+- **Platform**: Gaming platform/console
+- **Year**: Release year
+- **Genre**: Game category
+- **Publisher**: Publishing company
+- **Regional Sales** (in millions of units):
+  - NA_Sales: North American sales
+  - EU_Sales: European sales  
+  - JP_Sales: Japanese sales
+  - Other_Sales: Rest of world sales
+- **Global_Sales**: Total worldwide sales (in millions)
+
+## Key Findings
+
+### Top Performers
+- **#1 Game**: Wii Sports (82.74 million global sales)
+- **Top 3**: All Nintendo titles on Wii/NES platforms
+  1. Wii Sports - 82.74M
+  2. Super Mario Bros. - 40.24M  
+  3. Mario Kart Wii - 35.82M
+
+### Sales Range
+- **Highest Sales**: 82.74 million units (Wii Sports)
+- **Lowest Sales**: 0.01 million units (many titles)
+- **Sales Distribution**: Heavily skewed toward top performers
+
+### Platform Distribution
+The dataset includes games across numerous platforms:
+- **Nintendo**: Wii, NES, DS, GB, SNES, GBA, 3DS, N64, GC
+- **Sony**: PS2, PS3, PS4, PSP, PSV
+- **Microsoft**: X360, XB
+- **Others**: PC and various retro systems
+
+### Genre Variety
+Multiple genres represented including:
+- Sports, Platform, Racing, Action, Role-Playing
+- Shooter, Puzzle, Simulation, Adventure, Fighting
+- Misc (miscellaneous categories)
+
+### Publisher Landscape
+- **Nintendo**: Dominates top rankings with iconic franchises
+- **Major Publishers**: Take-Two Interactive, Electronic Arts, Activision, Sony Computer Entertainment
+- **Franchise Power**: Popular series (Mario, Pokemon, Call of Duty, Grand Theft Auto) appear multiple times
+
+### Regional Sales Patterns
+- **North American Market**: Strong for many top titles
+- **Japanese Market**: Significant for Nintendo and local publishers
+- **European Market**: Substantial market with varied preferences
+- **Global Appeal**: Top games show strong worldwide distribution
+
+## Data Quality Notes
+
+- Complete dataset with no apparent missing values in the sample reviewed
+- Sales figures consistently formatted in millions of units
+- Chronological span covers over 30 years of gaming history
+- Rankings appear to be based on global sales totals
+
+## Potential Analysis Opportunities
+
+This rich dataset enables analysis of:
+- Genre popularity trends over time
+- Platform lifecycle and market share
+- Regional market preferences and differences
+- Publisher market dominance and competition
+- Franchise performance across multiple entries
+- Seasonal and yearly sales patterns
+- Market evolution from retro to modern gaming
+
+## Data Limitations
+
+- Sales figures represent units sold, not revenue
+- Data appears to end around 2016
+- Some recent platforms and digital-only releases may be underrepresented
+- Regional sales breakdowns limited to four major markets
+
+This dataset provides an excellent foundation for analyzing video game industry trends, market dynamics, and consumer preferences across multiple decades of gaming history.