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

Last Updated : 15 Jul, 2025
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: Python3 
# 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: 
 [1] 4 6 2 6 5 2 6 5 3 3 4 6 4 7 7 2 5 6 2 5
Example 2: Python3 
# 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)
Output:
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Article Tags:
R Language
R Statistics

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