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html-decision-tree

Image Description Decision Tree

0.0.6
latest
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npm
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3
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HTML Decision Tree

This is a generic library for building a simple web-based decision trees UI. Data is provided in JSON format, which is then displayed on a website.

Installing and Building

The code is in Typescript. After cloning the repository, just type

npm install
npm run-script build

This builds the decisiontree.js library in dist.

Alternative build is done using typescript and webpack:

npx tsc
npx webpack

Or simply install the package using

npm install html-decision-tree

Simple Example

Here is a very simple decision tree for deciding if you should play tennis:

Tennis example

Here is the corresponding flow chart decision tree for deciding if you should play tennis in SVG

Alt Tennis Decision Tree

and in JSON format.

JSON Format

Current node format in some pseudo grammar:

{
type: binary|nary|null,
value: 0-9+,
title: \w*,
content: \w*,
labels: [{
  text: \w*,
  value: 0-9+,
  }],
children: [node*],
action: URL
}

The idea is nary nodes have content (that is the description on the radio button) which is linked via the value to the children . Binary nodes have default description content as Yes (0) and No (1). Actions are only considered in leaf nodes and open a new Tab.

Acknowledgments

  • Amaya Webster for suggesting the initial idea at the 2020 DIAGRAM and ETS Code Sprint
  • Brian Hochhalter for UI design and wireframe design and prototyping
  • Danielle Vargas for CSS styles and accessibility testing and design
  • Carlos Cavalie for accessibility testing and design

Keywords

decision tree

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Package last updated on 16 Jun 2020

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