Dear Mike,
Is there an approach to compute the accumulative sample size (N)?
It is quite convenient to know the number of primary studies (n) by "pattern.na ( )", but I can't find a syntax for the accumulative sample size (N).
Thanks in advance!
Ryan
Dear Ryan,
Please try the following code. Hope it helps.
Regards,
Mike
x <- Hunter83$data
n <- Hunter83$n
fun <- function(x1, n1) {
x2 <- x1
x2[is.na(x1)] <-0
x2[!is.na(x1)] <- n1
x2
}
my.df <- mapply(fun, x, n, SIMPLIFY=FALSE)
Reduce('+', my.df)
Thanks Mike!
The code works well!
Best wishes,
Ryan