Chapter 9. Drawing on Graphs

Contents

9.1 Drawing on a Graph 187

9.1.1 Example: Overlaying a Regression Curve on a Scatter Plot 188

9.1.2 Graph Coordinate Systems and Drawing Regions 191

9.1.3 Drawing in the Foreground and Background 197

9.1.4 Case Study: Adding a Prediction Band to a Scatter Plot 198

9.1.5 Practical Differences between the Coordinate Systems 202

9.2 Drawing Legends and Insets 203

9.2.1 Drawing a Legend 204

9.2.2 Drawing an Inset 206

9.3 Adjusting Graph Margins 208

9.4 A Module to Add Lines to a Graph 210

9.5 Case Study: A Module to Draw a Rug Plot on a Graph 212

9.6 Case Study: Plotting a Density Estimate 214

9.7 Case Study: Plotting a Loess Curve 216

9.8 Changing Tick Positions for a Date Axis 220

9.9 Case Study: Drawing Arbitrary Figures and Diagrams 222

9.10 A Comparison between Drawing in IMLPlus and PROC IML 224