D3.js quantile.copy() Function

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The quantile.copy() function returns the exact copy of the original scale. Any changes if made in either of the scale will not affect the other scale.

Syntax:

quantile.copy();

Parameters: This function does not accept any parameter.

Return Values: This function returns the copy of the original scale.

Below examples illustrate the quantile.copy() function in D3.js:

Example 1:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8" /> 
    <meta name="viewport" path1tent= 
        "width=device-width, initial-scale=1.0"/> 
  
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
</head> 
  
<body> 
    <h2 style="color:green;">GeekforGeeks</h2> 
  
    <p>quantile.copy() Function</p> 
  
    <script> 
        var quantile = d3.scaleQuantile() 
            // Setting domain for the scale. 
            .domain([1, 2, 15, 19]) 
            // Discrete range 
            .range(["red", "green", "black", "blue"]); 
        // Printing the output. 
        document.write("<h3>Form original scale: </h3>"); 
  
        document.write("<span>quantile(1): "  
                + quantile(1) + "</span><br>"); 
        document.write("<span>quantile(15): "  
                + quantile(15) + "</span><br>"); 
        document.write("<h3>Form copy scale: </h3>"); 
        var copyscale = quantile.copy(); 
        document.write("<span>copyscale(1): "  
                + copyscale(1) + "</span><br>"); 
        document.write("<span>copyscale(15): " 
                + copyscale(15) + "</span><br>"); 
    </script> 
</body> 
  
</html> 

Output:

Example 2:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8" /> 
    <meta name="viewport" path1tent= 
        "width=device-width, initial-scale=1.0"/> 
  
    <script src="https://d3js.org/d3.v4.min.js"> 
    </script> 
</head> 
  
<body> 
    <h2 style="color: green;">GeekforGeeks</h2> 
  
    <p>quantile.copy() Function </p> 
  
    <script> 
        var quantile = d3.scaleQuantile() 
            // Setting domain for the scale. 
            .domain([1, 2, 15, 19]) 
            // Discrete range 
            .range(["red", "green", "black", "blue"]); 
  
        // Printing the output. 
        document.write("<h3>Form original scale: </h3>"); 
        document.write("<span>quantile(2): "  
                + quantile(2) + "</span><br>"); 
        document.write("<span>quantile(19): "  
                + quantile(19) + "</span><br>"); 
        document.write("<h3>Form copy scale: </h3>"); 
        // Changing th copy scale.  
        var copyscale = quantile.copy() 
            .range([1.22, 11.5421, 2.2154, 3.2154]); 
        document.write("<span>copyscale(2): "  
                + copyscale(2) + "</span><br>"); 
        document.write("<span>copyscale(19): "  
                + copyscale(19) + "</span><br>"); 
    </script> 
</body> 
  
</html> 

Output:

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