GeoDa WASM

GeoDa WASM is a WebAssembly module that provides spatial data analysis capabilities from the GeoDa C++ library for use in web browsers and Node.js applications.

✨ Features

@geoda/core

• 🗺️ Mapping
• 📊 Data Exploration
• ⚖️ Spatial Weights
• ⚡ Spatial Operations

@geoda/lisa

• 📐 Spatial Autocorrelation Analysis

@geoda/regression

• 📈 Spatial Regression

@geoda/clustering (WIP)

• 📍 Spatial Clustering

Dive deeper in our API Overview!

🚀 Installation

Get started in a flash with your favorite package manager:

npm install @geoda/core

Each package works independently, so you can install only the packages you need.

🛠️ Example

Here is a quick example of using GeoDaLib to apply Local Moran statistics on some example data:

import {localMoran} from '@geoda/lisa';

// exmaple data
const data = [3.0, 3.0, 0.0, 9.0, 8.0, 8.5];
const neighbors = [[1], [0], [], [4, 5], [3, 5], [3, 4]];
const permutation = 99;

// call local moran
const result = await localMoran({data, neighbors, permutation});

🏗️ Development

📋 Prerequisites

• CMake (3.5 or higher)
• Emscripten
• Node.js (22.11.0 recommended)
• Yarn (4.0.0 recommended)

🛠️ Build Steps

1. Clone the repository
2. Build the WASM module:

cd js
yarn install
yarn wasm

3. Build the JavaScript wrapper:

yarn build

4. Run the tests:

yarn test

📜 License

This project is licensed under the MIT License. Authors: Luc Anselin and Xun Li.

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.