Sankey charts are a powerful and intuitive tool for visualizing complex data flows. They are particularly useful for presenting data in a diagrammatic, flow-based format that is easy to understand and interpret. In the rest of this article, we will discuss the creation of sankey charts and their applications, and we will provide some tips to help you effectively use this tool for data visualization.
Creating Sankey Charts
Creating a sankey chart is relatively easy to do with some basic HTML/JavaScript and a good understanding of data organization. Here is how to get started with creating a sankey chart:
- Create an HTML file and add the script tag to include the sankey visualization library. For example:
“` html
“`
- Add the sankey chart container in the body of the HTML document. In this example we are using a div element with the id
chart.
“` html
“`
- Write JavaScript code that adds, rearranges and updates the sankey chart. This is done by setting the properties of the sankey object.
“` javascript
// Create sankey object
var sankey = sankey.create({
nodes: {},
links: {},
source: 0,
scale: 1
// Set width and height
, layout: {view: new View(0, 0, window.innerWidth, window.innerHeight)},
// Add source node
, source: {id: source, value: 0}
});
// Function to add source node
function addSource(parent, value) {
sankey.add(sankey
.node()
.id(“source”)
.value(value)
.class(“source”)
.position({y: -10, x: 40, width: 80})
.render(“line”));
}
“`
Applying Sankey Charts
Once you have created an sankey chart, you can apply it to a data set using the sankey.render() function. This function takes the sankey object, the data set, and any specific settings, and returns a new instance of the sankey object.
javascript
var sankey = sankey.render(sankey, sankeyData, {orientation: "auto", margin: 200});
In this example, we are applying the sankey chart to the sankeyData variable, which holds the key values and their correspondents data points. The function also takes an additional option that defines how the chart should be positioned, and the width and height of the chart.
Sankey Charts Applications
Sankey charts are widely used in fields ranging from engineering to finance to project management to tourism to marketing data, etc. They are particularly effective in applications where complex data flow relations need to be visualized efficiently, effectively and with easy comprehension.
There are many ways to use sankey charts for data visualization, and we have discussed those in this article. However, it is important to note that sankey charts should be used as a last resort and only when other visualization techniques fail to effectively visualize the relationships between the data points.
SankeyMaster
SankeyMaster is your go-to tool for creating complex Sankey charts . Easily enter data and create Sankey charts that accurately reveal intricate data relationships.
