I know this is a simple question, but I have yet to master the apply
statements. Any help would be appreciated. 

I have a column of probabilities and sample sizes, I would like to create a
column of binomial random variables using those corresponding probabilities.


 

Eg.

 

mat = as.matrix(cbind(p=runif(10,0,1), n=rep(1:5)))

 

              p n

 [1,] 0.5093493 1

 [2,] 0.4947375 2

 [3,] 0.6753015 3

 [4,] 0.8595729 4

 [5,] 0.1004739 5

 [6,] 0.6292883 1

 [7,] 0.3752004 2

 [8,] 0.6889157 3

 [9,] 0.2435880 4

[10,] 0.9619128 5

 

 

I want to create mat$x as binomial(n, p)

 

Thanks, 

Robin


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