# Compute Randomly Drawn Poisson Density in R Programming – rpois() Function

`rpois()` function in R Language is used to compute random density for poisson distribution.

Syntax: rpois(N, lambda)

Parameters:
N: Sample Size
lambda: Average number of events per interval

Example 1:

 `# R program to compute random ` `# Poisson Density ` ` `  `# Setting seed for ` `# random number generation ` `set``.seed(``1000``) ` ` `  `# Set sample size ` `N <``-` `20` ` `  `# Calling rpois() Function ` `y <``-` `rpois(N, ``lambda` `=` `5``) ` `y `

Output:

```  4 6 2 6 5 2 6 5 3 3 4 6 4 7 7 2 5 6 2 5
```

Example 2:

 `# R program to compute random ` `# Poisson Density ` ` `  `# Setting seed for ` `# random number generation ` `set``.seed(``1000``) ` ` `  `# Set sample size ` `N <``-` `100` ` `  `# Calling rpois() Function ` `y <``-` `rpois(N, ``lambda` `=` `15``) ` ` `  `# Plot a graph ` `plot(y) `

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