# D3.js quantileSorted() Method

• Last Updated : 23 Sep, 2020

With the help of d3.quantileSorted() method, we can get the quantile value of the given array of sorted values by using p as a probability in this method.

Syntax:

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```d3.quantileSorted(array, p)
```

Parameter: This function has the following parameter as mentioned above and described below:

• array: It is an array of values which is passed as parameter.
• p: It is the quartile range value.

Return Value: It returns the p-quantile of the given sorted array of elements.

Note: To execute the below examples you have to install the d3 library by using this command prompt we have to execute the following command.

```npm install d3
```

Example 1: Filename: index.js

In this example we can see that by using d3.quantileSorted() method, we are able to get the p-quantile value from the given sorted values of an array by using this method.

 `// Defining d3 contrib variable  ``var` `d3 = require(``'d3'``);`` ` `var` `arr = [1.21, 1.33, 1.33, 1.34, 1.37, 1.37, 1.38,``1.4, 1.42, 1.43, 1.43, 1.43, 1.44, 1.45, 1.45, 1.45,``1.45, 1.45, 1.45, 1.45]`` ` `var` `gfg = d3.quantileSorted(arr, 0.25)`` ` `console.log(gfg)`

Output:

`1.37`

Example 2: Filename: index.js

 `// Defining d3 contrib variable  ``var` `d3 = require(``'d3'``);`` ` `var` `arr = []``for``(``var` `i = 0; i < 50; i++) {``    ``arr.push(i);``}`` ` `var` `gfg = d3.quantileSorted(arr, 0.75)`` ` `console.log(gfg)`

Output:

`36.75`

Note: The above program will compile and run by using the following command:

`node index.js`

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