Compute the Cumulative Poisson Density in R Programming – ppois() Function
Last Updated :
25 Jun, 2020
ppois()
function in R Language is used to compute the cumulative density function for Poisson distribution.
Syntax: ppois(vec, lambda)
Parameters:
vec: Sequence of integer values
lambda: Average number of events per interval
Example 1:
x < - seq( - 10 , 10 , by = 1 )
y < - ppois(x, lambda = 5 )
y
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Output:
[1] 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000 0.000000000
[7] 0.000000000 0.000000000 0.000000000 0.000000000 0.006737947 0.040427682
[13] 0.124652019 0.265025915 0.440493285 0.615960655 0.762183463 0.866628326
[19] 0.931906365 0.968171943 0.986304731
Example 2:
x < - seq( 1 , 20 , by = 1 )
y < - ppois(x, lambda = 10 )
plot(y)
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Output:
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