The randomNormal() function is used to return a function that gives a random number based on Normal distribution or Gaussian distribution.
Syntax:
d3.randomNormal(mu, sigma);
Parameters: It takes the two parameters given above and described below.
- mu: It is the expected value of the number. If mu is not given then it is considered as 0.
- sigma: The number is generated with a certain standard deviation called sigma.
Returns: It returns a function.
Below given are a few examples of the above function.
Example 1: When mu is given.
html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title></head><style></style><body> <!-- Fetching from CDN of D3.js --> <script type = "text/javascript" src = "https://d3js.org/d3.v4.min.js"> </script> <script>// The output may be different on different machines. console.log(d3.randomNormal(10, 10)()) console.log(d3.randomNormal(10, 10)()) console.log(d3.randomNormal(10, 10)()) console.log(d3.randomNormal(10, 10)()) console.log(d3.randomNormal(10, 10)()) </script></body></html> |
Output:
Example 2: When mu is not given.
html
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title></head><style></style><body> <!-- Fetching from CDN of D3.js --> <script type = "text/javascript" src = "https://d3js.org/d3.v4.min.js"> </script> <script>// The output may be different on different machines. console.log(d3.randomNormal(5)()) console.log(d3.randomNormal(5)()) console.log(d3.randomNormal(5)()) console.log(d3.randomNormal(5)()) console.log(d3.randomNormal(5)()) console.log(d3.randomNormal(5)()) </script></body></html> |
Output:
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