Ethical investment decision tree for a fictional company - data frame format

This dataframe represents a decision tree in relational format, in which hierarchical relationships are indicated by a value indicating the parent of each node.

The decision tree is a hypothetical tool to standardise the process of making ethical investments. It was developed to illustrate the functionality of this package.

Usage

ethical

Format

A data frame with 5 variables and 34 rows

Each row represents a node or leaf in the tree and the columns represent attributes of those nodes. The columns are:

id

A unique sequential numeric identifier for each node

name

A short, unique alphanumeric code or name for nodes. For leaf nodes (questions), a short code is used. For higher nodes, a descriptive phrase is used.

question

The full text of the question for leaves, or NA for higher nodes.

rule

The logical rule for nodes, either AND or OR, and NA for leaves.

parent

The numeric id of the parent node, and NA for the root node.

Source

This is a simple hypothetical decision tree created solely to illustrate the use of the analytical approach.

Details

A data.tree object is created from the dataframe using the read_tree_df() function.

Examples

# Read the data into a data.tree object for analysis
tree <- load_tree_df(ethical)

# View the tree
print_tree(tree)
#> Tree                                             Rule      Answer      Confidence   
#> Invest in Company X                               AND                    
#> |-- Financial Viability                           AND                    
#> |   |-- Profitability and Growth Signals          OR                     
#> |   |   |-- FIN1                                                         
#> |   |   |-- FIN2                                                         
#> |   |   `-- FIN3                                                         
#> |   `-- Solvency and Stability                    AND                    
#> |       |-- FIN4                                                         
#> |       `-- FIN5                                                         
#> |-- Acceptable Environmental Stewardship          OR                     
#> |   |-- Has a Clean Current Record                AND                    
#> |   |   |-- ENV1                                                         
#> |   |   |-- ENV2                                                         
#> |   |   `-- ENV3                                                         
#> |   `-- Has a Credible Transition Pathway         OR                     
#> |       |-- ENV4                                                         
#> |       |-- ENV5                                                         
#> |       `-- ENV6                                                         
#> |-- Demonstrable Social Responsibility            OR                     
#> |   |-- Shows Excellent Internal Culture          OR                     
#> |   |   |-- SOC1                                                         
#> |   |   |-- SOC2                                                         
#> |   |   |-- SOC3                                                         
#> |   |   `-- SOC4                                                         
#> |   `-- Has a Positive External Impact            AND                    
#> |       |-- SOC5                                                         
#> |       |-- SOC6                                                         
#> |       `-- SOC7                                                         
#> `-- Strong Corporate Governance                   AND                    
#>     |-- GOV1                                                             
#>     |-- GOV2                                                             
#>     |-- GOV3                                                             
#>     |-- GOV4                                                             
#>     `-- GOV5