# Technical Document Analysis: Energy Efficiency Comparison Chart ## Chart Type Bar chart comparing energy efficiency metrics across different Prac categories and thresholds. ## Axes - **X-axis (Categories):** - Prac-1 - Prac-2 - Prac-4 - All - **Y-axis (Values):** - Energy Comparison (%) - Range: 0.0% to 20.0% (in 2.5% increments) - Labels: Numerical percentages (e.g., 18.6%, 19.1%) ## Legend - **Location:** Top of the chart - **Color-Coded Thresholds:** - **Blue (#1f77b4):** 64 - **Orange (#ff7f0e):** 128 - **Green (#2ca02c):** 256 - **Gray (#9467bd):** Geomean ## Data Points & Trends ### Prac-1 - **Threshold 64 (Blue):** 18.3% - **Threshold 128 (Orange):** 18.5% - **Threshold 256 (Green):** 18.6% - **Geomean (Gray):** 18.6% - *Trend:* Gradual increase from 64 to 256 thresholds, with Geomean matching the highest threshold. ### Prac-2 - **Threshold 64 (Blue):** 19.5% - **Threshold 128 (Orange):** 19.0% - **Threshold 256 (Green):** 19.0% - **Geomean (Gray):** 19.1% - *Trend:* Slight decline from 64 to 128/256 thresholds, with Geomean slightly higher than 128/256. ### Prac-4 - **Threshold 64 (Blue):** 20.8% - **Threshold 128 (Orange):** 19.3% - **Threshold 256 (Green):** 19.2% - **Geomean (Gray):** 19.7% - *Trend:* Sharp drop from 64 to 128/256 thresholds, with Geomean significantly higher than individual thresholds. ### All - **Geomean (Gray):** 19.0% - *Trend:* Single data point representing aggregated Geomean across all Prac categories. ## Key Observations 1. **Threshold Impact:** - Higher thresholds (256) generally show lower energy efficiency than lower thresholds (64/128), except in Prac-4 where 64 outperforms others. 2. **Geomean Consistency:** - Geomean values are consistently higher than individual thresholds in Prac-2 and Prac-4, suggesting a balancing effect. 3. **Aggregation ("All"):** - The "All" category Geomean (19.0%) is lower than Prac-4's Geomean (19.7%), indicating variability across Prac categories. ## Spatial Grounding - **Legend Position:** Top-center, aligned with x-axis categories. - **Bar Alignment:** Each Prac category has four bars (64, 128, 256, Geomean), except "All," which has only Geomean. ## Component Isolation - **Header:** Chart title ("Threshold") and legend. - **Main Chart:** Four grouped bars per Prac category (except "All"). - **Footer:** Y-axis labels and percentage increments. ## Data Table Reconstruction | Category | Threshold 64 (%) | Threshold 128 (%) | Threshold 256 (%) | Geomean (%) | |----------|------------------|-------------------|-------------------|-------------| | Prac-1 | 18.3 | 18.5 | 18.6 | 18.6 | | Prac-2 | 19.5 | 19.0 | 19.0 | 19.1 | | Prac-4 | 20.8 | 19.3 | 19.2 | 19.7 | | All | - | - | - | 19.0 | ## Language Notes - **Primary Language:** English (all labels, axis titles, and annotations). - **No Additional Languages Detected.**