# Technical Document Extraction: Line Chart Analysis ## Chart Overview The image depicts a line chart comparing multiple data series across a numerical range. Key components include: - **X-axis**: Labeled "N" with values from 100 to 700 (increments of 100) - **Y-axis**: Labeled "MER Average" with values from 0.26 to 0.36 (increments of 0.02) - **Legend**: Positioned on the right side of the chart - **Grid**: Light gray horizontal and vertical lines for reference --- ## Legend Analysis Legend entries (right-aligned) with color/marker mappings: 1. **Blue line with circles**: `CUSUM` 2. **Orange line with triangles**: `m^(1),L=1` 3. **Green line with diamonds**: `m^(2),L=1` 4. **Red line with squares**: `m^(1),L=5` 5. **Purple line with crosses**: `m^(1),L=10` **Spatial Grounding**: Legend occupies the right 20% of the chart area, aligned vertically with the y-axis. --- ## Data Series Trends ### 1. CUSUM (Blue Circles) - **Trend**: Relatively flat with minor fluctuations - **Key Points**: - Starts at 0.36 (N=100) - Dips to 0.35 (N=200) - Stabilizes between 0.35–0.36 for N=300–700 - Final value: 0.35 (N=700) ### 2. m^(1),L=1 (Orange Triangles) - **Trend**: Sharp initial decline, then stabilization - **Key Points**: - Starts at 0.36 (N=100) - Drops to 0.26 (N=200) - Remains near 0.26 for N=300–700 - Final value: 0.26 (N=700) ### 3. m^(2),L=1 (Green Diamonds) - **Trend**: Moderate decline followed by fluctuation - **Key Points**: - Starts at 0.34 (N=100) - Dips to 0.26 (N=300) - Fluctuates between 0.27–0.28 for N=400–600 - Final value: 0.27 (N=700) ### 4. m^(1),L=5 (Red Squares) - **Trend**: Initial decline, then gradual rise - **Key Points**: - Starts at 0.30 (N=100) - Dips to 0.26 (N=200) - Rises to 0.27 (N=600) - Final value: 0.27 (N=700) ### 5. m^(1),L=10 (Purple Crosses) - **Trend**: Steep decline, then stabilization - **Key Points**: - Starts at 0.30 (N=100) - Drops to 0.26 (N=200) - Fluctuates between 0.26–0.27 for N=300–700 - Final value: 0.26 (N=700) --- ## Cross-Reference Validation - **Color Consistency**: All legend colors match corresponding line markers - **Axis Alignment**: X-axis (N) and Y-axis (MER Average) labels are clearly legible - **Grid Precision**: Grid lines align with axis increments (e.g., 0.26, 0.28, etc.) --- ## Critical Observations 1. **CUSUM Stability**: Maintains highest MER Average (0.35–0.36) across all N values 2. **L=1 Series Divergence**: Both `m^(1),L=1` and `m^(2),L=1` show significant drops compared to other L values 3. **L=5 vs L=10**: `m^(1),L=5` outperforms `m^(1),L=10` at higher N values (N=500–700) 4. **Convergence**: All L=1 and L=10 series converge to ~0.26–0.27 by N=700 --- ## Data Table Reconstruction | N | CUSUM | m^(1),L=1 | m^(2),L=1 | m^(1),L=5 | m^(1),L=10 | |------|-------|-----------|-----------|-----------|------------| | 100 | 0.36 | 0.36 | 0.34 | 0.30 | 0.30 | | 200 | 0.35 | 0.26 | 0.28 | 0.26 | 0.26 | | 300 | 0.35 | 0.26 | 0.26 | 0.26 | 0.26 | | 400 | 0.35 | 0.27 | 0.28 | 0.27 | 0.27 | | 500 | 0.35 | 0.27 | 0.28 | 0.27 | 0.27 | | 600 | 0.36 | 0.26 | 0.27 | 0.27 | 0.27 | | 700 | 0.35 | 0.26 | 0.27 | 0.27 | 0.26 | *Note: Values interpolated from chart trends where exact points were not marked.* --- ## Language Declaration - **Primary Language**: English (all labels, axis titles, and legend entries are in English) - **No Additional Languages Detected**