7+ Jstat Map 使い方 References

地図で見る統計（jSTAT MAP）とは政府統計の総合窓口 from www.e-stat.go.jp

Introduction

Are you looking for a powerful tool to visualize and analyze your data on a map? Look no further than JStat Map! In this article, we'll explore the basics of JStat Map and show you how to use it to create stunning maps that can help you make better decisions.

What is JStat Map?

JStat Map is a data visualization library for JavaScript that allows you to plot your data on a map. With JStat Map, you can create heat maps, scatter plots, choropleth maps, and more. It's built on top of the Leaflet library, which is a popular open-source mapping library.

Getting Started with JStat Map

Before we dive into the details of JStat Map, let's first make sure you have everything you need to get started. You'll need to download JStat Map and include it in your HTML file. You can find the latest version of JStat Map on its website.

Creating a Basic Map

Once you have JStat Map installed, you can start creating your first map. Let's create a basic map that shows the location of your data points. Here's the code you'll need:

var map = L.map('map').setView([51.505, -0.09], 13); L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { attribution: 'Map data © OpenStreetMap contributors', maxZoom: 18, }).addTo(map); L.marker([51.5, -0.09]).addTo(map) .bindPopup('Hello World!').openPopup();

This code creates a map centered on the coordinates (51.505, -0.09) with a zoom level of 13. It then adds a tile layer from OpenStreetMap and a marker at the coordinates (51.5, -0.09) with a popup that says "Hello World!".

Creating a Heat Map

One of the most common types of maps you'll create with JStat Map is a heat map. A heat map shows the density of data points on a map. Let's create a heat map with JStat Map. Here's the code you'll need:

var heatmap = L.jheatmap({ container: 'map', data: data, cellRenderer: L.jheatcellrenderer({ colorScale: 'greys', alphaScale: 'linear', radius: 10, blur: 5 }) });

This code creates a heat map using the JHeatCellRenderer. The JHeatCellRenderer uses a color scale to represent the density of data points. In this example, we're using the "greys" color scale with a linear alpha scale. We're also setting the radius and blur of the heat map cells.

Creating a Choropleth Map

A choropleth map is a map that shows data for a specific region or area. Let's create a choropleth map with JStat Map. Here's the code you'll need:

var choropleth = L.jchoropleth({ container: 'map', data: data, columns: { location: 'location', value: 'value' }, geojson: geojson, style: { fillColor: 'white', weight: 2, opacity: 1, color: 'grey', dashArray: '3', fillOpacity: 0.7 } });

This code creates a choropleth map using the JChoroplethRenderer. The JChoroplethRenderer maps data to the color of the polygons based on a color scale. In this example, we're using a geojson file to define the polygons and setting the style of the polygons.

Conclusion

JStat Map is a powerful tool for visualizing and analyzing your data on a map. With JStat Map, you can create heat maps, scatter plots, choropleth maps, and more. In this article, we've covered the basics of JStat Map and shown you how to create different types of maps. We hope this article has been helpful in getting you started with JStat Map!