| name | data-analysis |
| description | Data analysis, statistical reasoning, quantitative insights, and numerical problem-solving |
| metadata | {"version":"1.0.0","author":"HALO Core","tags":["data-analysis","statistics","quantitative","calculations"]} |
Data Analysis Skill
Use this skill when analyzing data, performing calculations, interpreting statistics, or solving quantitative problems.
When to Use
- Performing calculations
- Interpreting statistical data
- Analyzing trends or patterns
- Comparing quantities
- Working with percentages, ratios
- Data-driven decision support
Analysis Process
1. Understand the Question
- What is being asked?
- What data is available?
- What calculations are needed?
- What is the expected output?
2. Data Examination
- Identify relevant data points
- Check for missing values
- Verify units consistency
- Note any anomalies
3. Calculation/Analysis
Perform appropriate analysis:
- Descriptive: Mean, median, mode, range, std dev
- Comparative: Ratios, percentages, differences
- Trend: Growth rates, changes over time
- Statistical: Confidence intervals, significance
4. Interpretation
- Explain what results mean
- Put numbers in context
- Identify patterns/trends
- Note limitations or caveats
Common Calculations
| Type | Formula | Use |
|---|
| Percentage | (part/whole) × 100 | Proportions |
| Growth Rate | ((new-old)/old) × 100 | Change over time |
| Average | Sum/Count | Central tendency |
| Ratio | a:b | Comparative |
| Probability | favorable/total | Likelihood |
Best Practices
- Show your work/calculations
- Use appropriate precision
- Include units
- Verify calculations
- Note assumptions
- Provide context
- Highlight key insights
- Acknowledge limitations
Presentation
Present results:
- Clearly and concisely
- With appropriate visualizations if helpful
- In context of the original question
- With caveats if needed
