| Variable | Description | Type of Variable | Calculation | Example |
|---|---|---|---|---|
| playerID | Unique identifier for each player. | - | - | "bondsba01" |
| POS | Player's primary fielding position. | - | - | "CF" |
| inducted | Hall of Fame induction status (1 for Yes, 0 for No). | - | - | - |
| play_era | Player's era or era range during active play. | - | - | "Dead Ball" |
| G | Games played. | Numeric | - | - |
| AB | At-bats. | Numeric | - | - |
| R | Runs scored. | Numeric | - | - |
| H | Hits. | Numeric | - | - |
| X2B | Doubles. | Numeric | - | - |
| X3B | Triples. | Numeric | - | - |
| HR | Home runs. | Numeric | - | - |
| RBI | Runs batted in. | Numeric | - | - |
| SB | Stolen bases. | Numeric | - | - |
| CS | Caught stealing. | Numeric | - | - |
| BB | Walks (Base on Balls). | Numeric | - | - |
| SO | Strikeouts. | Numeric | - | - |
| IBB | Intentional walks. | Numeric | - | - |
| HBP | Hit by pitch. | Numeric | - | - |
| SH | Sacrifice hits. | Numeric | - | - |
| SF | Sacrifice flies. | Numeric | - | - |
| GIDP | Ground into double play. | Numeric | - | - |
| GS | Games started. | Numeric | - | - |
| InnOuts | Innings played (outs recorded). | Numeric | - | - |
| PO | Putouts. | Numeric | - | - |
| A | Assists. | Numeric | - | - |
| E | Errors. | Numeric | - | - |
| DP | Double plays turned. | Numeric | - | - |
| PB | Passed balls (catcher statistic). | Numeric | - | - |
| WP | Wild pitches (catcher statistic). | Numeric | - | - |
| SB_against | Stolen bases allowed by a catcher. | Numeric | - | - |
| CS_for | Runners caught stealing by a catcher. | Numeric | - | - |
| ZR | Zone rating (fielding statistic). | Numeric | - | - |
| PA | Plate appearances. | Numeric | - | - |
| BA | Batting average. | Numeric | - | |
| 1B | Singles. | Numeric | - | |
| SLG | Slugging percentage. | Numeric | - | |
| OBP | On-base percentage. | Numeric | - | |
| OPS | On-base plus slugging. | Numeric | - | |
| SO% | Strikeout percentage. | Numeric | - | |
| BB% | Walk percentage. | Numeric | - | |
| BB:SO | Walk-to-strikeout ratio. | Numeric | - | |
| Range | Defensive range. | Numeric | - | |
| Triple Crown | Achievement of leading the league in batting average, home runs, and RBIs in the same season. | Factor (0/1/2) | - | - |
| 500_hr | 500 or more career home runs. (0 for No, 1 for Yes) | Binary (0/1) | - | - |
| 3000_hit | 3000 or more career hits. (0 for No, 1 for Yes) | Binary (0/1) | - | - |
| 1500_runs | 1500 or more career runs. (0 for No, 1 for Yes) | Binary (0/1) | - | - |
| 1500_rbi | 1500 or more career runs batted in. (0 for No, 1 for Yes) | Binary (0/1) | - | - |
| 2500_G | 2500 or more career games played. (0 for No, 1 for Yes) | Binary (0/1) | - | - |
| ped_use | Indicates whether the player has been linked to the use of performance-enhancing drugs (PEDs). (0 for No, 1 for Yes) | Binary (0/1) | - | - |