D3.js scaleQuantile() Function

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The d3.scaleQuantile() function in D3.js is used to create and return a new quantile scale that has the specified domain and range. In case the domain or the range is not specified, each value is set to empty array by default.

Syntax:

d3.scaleQuantile( domain, range )

Parameters: This function accepts two parameters as given above and described below:

domain: It is an array of only integers that defines the extent of domain values. It is an optional parameter. The default value is set to empty array.
range: It is an array of integers or strings. It is an optional parameter. The default value is set to empty array.

Return Values: This function does not return anything.

Below programs illustrate the d3.scaleQuantile() function in D3.js:

Example 1:

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
    <script src="https://d3js.org/d3-color.v1.min.js"> 
    </script> 
    <script src= 
    "https://d3js.org/d3-interpolate.v1.min.js"> 
    </script> 
    <script src= 
    "https://d3js.org/d3-scale-chromatic.v1.min.js"> 
    </script> 
</head> 
  
<body> 
    <h1 style="color: green;">zambiatek</h1> 
  
    <p>d3.ScaleQuantile() Function </p> 
  
    <script> 
        // Using scaleQuantile function 
        var quantile = d3.scaleQuantile() 
            .domain([0, 1]) 
            .range(["blue", "yellow", "green"]); 
  
        document.write("<h3>" + 
            quantile(0) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.3) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.5) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.9) + "</h3>"); 
    </script> 
</body> 
  
</html> 

Output:

Example 2:

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
    <script src="https://d3js.org/d3-color.v1.min.js"> 
    </script> 
    <script src= 
    "https://d3js.org/d3-interpolate.v1.min.js"> 
    </script> 
    <script src= 
    "https://d3js.org/d3-scale-chromatic.v1.min.js"> 
    </script> 
</head> 
  
<body> 
    <h1 style="color: green;"> 
        zambiatek 
    </h1> 
  
    <p>d3.ScaleQuantile() Function </p> 
  
    <script> 
        // Using the scaleQuantile function 
        var quantile = d3.scaleQuantile() 
            .domain([0, 1]) 
            .range([1, 100]); 
  
        document.write("<h3>" + 
            quantile(0) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.3) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.5) + "</h3>"); 
        document.write("<h3>" + 
            quantile(0.9) + "</h3>"); 
    </script> 
</body> 
  
</html> 

Output:

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