CSV File Format
To import your predictions into the Brier Score Calculator, please format your CSV file as follows.
Quick Start
Download a sample.csv file to get started immediately.
Required Columns
Your CSV must have a header row with these exact column names (case-insensitive):
| Column | Description | Example |
|---|---|---|
| p | Your probability forecast (0.0 to 1.0) | 0.75 |
| outcome | The actual result (1 = Happened, 0 = Didn't) | 1 |
| id | (Optional) A unique identifier for the question | Q101 |
Example Content
id,p,outcome
event_1,0.80,1
event_2,0.45,0
event_3,0.99,1
event_4,0.10,0
event_1,0.80,1
event_2,0.45,0
event_3,0.99,1
event_4,0.10,0
Common Issues
- Percentages: Do not use "%". Convert 50% to 0.50.
- Outcomes: Must be strictly 0 or 1. No "Yes", "No", "Win", "Loss".
- Separators: Use commas (,) as separators. Semicolons are not supported yet.