The randomExponential() function is used to return a function that generates the random number based on the exponential distribution.
Syntax:
d3.randomExponential(lambda);
Parameters: It takes only one parameter that is given above and described below.
- lambda: It is the rate of the exponential distribution function which is equal to the time between events in a Poisson process.
Returns: It returns a function.
Note: The value of the output may be different each time the function is run.
Below given are a few examples of the above function.
Example 1: When lambda is greater than one.
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 value of the output may be
different each time the function is run.*/
console.log(d3.randomExponential(5)())
console.log(d3.randomExponential(5)())
console.log(d3.randomExponential(5)())
console.log(d3.randomExponential(5)())
console.log(d3.randomExponential(5)())
</script>
</body>
</html>
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Output:
Example 2: When the value of lambda is less than one.
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 value of the output may be
different each time the function is run.*/
console.log(d3.randomExponential(0.5)())
/* Smaller the lambda greater the random value generated. console.log(d3.randomExponential(0.05)())
console.log(d3.randomExponential(0.005)())
console.log(d3.randomExponential(0.0005)())
</script>
</body>
</html>
|
Output: