Statistics Analysis App

🚀 Live Demo

Try the app now: https://devinmprz.github.io/Statistics-Analysis-App

No installation required! Access the app directly in your browser to explore all features.

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Contents

• Live Demo
• Features
• Requirements
• Build & Run
• Usage
• Data Format
  • Minitool 1: Life Span of Batteries
  • Minitool 2: Speed trap scenario, Cholesterol Level
  • Minitool 3: Bivariate Scatter & Partitioning
• Sample Data

Features

• Life Span of Batteries: This minitool allows students to explore and compare the life span of two different battery brands—Always Ready and Tough Cell.
• Speed trap scenario: Analyse changes in behaviour of traffic after the police implemented a speed trap on that section of the highway.
• Cholesterol Level: Analyse the changes of cholesterol level of the pacients of medical experiment, that came through certain diet.
• Bivariate Scatter & Partitioning: Dynamic scatter plot with draggable quadrants, customizable grids, and equal-group slicing for two-variable relationships.

Requirements

Note: If you just want to use the app, visit the live demo instead of setting up a development environment.

For local development:

• Node.js v14 or higher
• npm v6 or higher

Build & Run

Clone the repository and install dependencies:

# Clone repository
git clone https://github.com/DevinMprz/Statistics-Analysis-App.git
cd Statistics-Analysis-App

# Install dependencies
npm install

#Buld the project
npm run start

Usage

1. Open your browser to http://localhost:8081. (if 8081 is busy, expo will suggest you to use another port (usually 8082))
2. Select a Minitool from the navigation menu.
3. Use the on-screen controls or your input devices to interact with charts.

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Data Format

Scenarios can be uploaded as .csv or .xlsx files via the Upload from File button in each minitool. The required columns differ per tool.

Minitool 1: Life Span of Batteries

Two required columns: brand and lifespan.

• brand — must be exactly Tough Cell or Always Ready (case-sensitive)
• lifespan — numeric value between 1 and 130

brand,lifespan
Tough Cell,85
Always Ready,90
Tough Cell,72
Always Ready,68

Minitool 2: Speed trap scenario, Cholesterol Level

Two required columns: before and after. Both must contain numeric values. A row may leave one column empty as long as the other has a value.

before,after
200,180
210,190
195,172

Minitool 3: Bivariate Scatter & Partitioning

Two required columns: x and y. Both must contain numeric values.

x,y
1.4,3.7
2.1,5.0
3.8,7.2

Sample Data

The data/ directory includes example files