Introduction | World PopulationTreeMap (visualization) | Original Example, to be improved | Convert from data.frame | Aggregate and Cumulate | Prune | Plot | Plotting the treemap | Plot as dendrogram | Further developments | Portfolio Breakdown (finance) | Aggregate | Formatters | Print | ID3 (machine learning) | ID3 Introduction | Purity and Entropy | Information Gain | Training | Pseudo code | Implementation in R with the data.tree package | Training with data | Prediction | The prediction method | Using the prediction method | Jenny Lind (decision tree, plotting) | Load YAML file | Calculate | Plot with the data.tree plotting facility | Bubble Chart (visualization) | Load JSON file | File Explorer (system utilities) | Listviewer html widget | Gene Defect (genetics, probabilities, multi-generation models) | Algorithm | Analysis | Simulation | Parallelisation | Tic-Tac-Toe (game complexity) | Game play | Exit Criteria | Tree creation

Introduction | Trees | Trees in R | Trees in data.tree | data.tree basics | Definitions | Tree creation | Create a tree programmatically | Create a tree from a data.frame | Create a tree from a file | Node methods | Actives Examples (aka Properties) | OO-Style Methods Examples | Traditional R Methods | Climbing a tree (tree navigation) | Navigation by path | Navigation by position | Navigation by attributes | Custom attributes | Custom attributes in constructor | Custom attributes as function | Printing | Basic Printing | Formatters | Printing using Get | Plotting | plot | Styling | Other Visualisations | Dendrogram | igraph | networkD3 | Tree Conversion | Converting to data.frame | Converting to List of Lists | Converting to other objects | Tree Traversal | Get | Traversal order | Pre-Order | Post-Order | Ancestor | Filter and Prune | Attributes | Field | Method | Using recursion | Do | Set | Assigning values | Deleting attributes | Using Set and function assignment | Traverse and explicit traversal | Advanced Features | Aggregate | Cumulate | Clone | Sort | Prune | Performance Considerations | CPU | Memory