[R] need help calculating the indicator function

[Rui Barradas]

Hello,

Maybe this?

n_l <- function(Y, l, na.rm = FALSE) sum(Y == l, na.rm = na.rm)

set.seed(2020)
q <- 6
y <- sample(q, 10, TRUE)

l <- 4
n_l(y, l)
#[1] 3


Hope this helps,

Rui Barradas


Às 14:27 de 29/01/21, Ablaye Ngalaba escreveu:
> Hello,
> please, I need to calculate the indicator function as I underlined in my
> attached pdf file but I can't define a code in programming language that
> deals with this case. Please help me with a code whether it's in python or
> R can help me.
> 
> 
> 
>     Sincerely.
> 
> 
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