R, Substitute NAs by zero

Question

How can I substitute NA values by zero in a R zoo series? I've been reading about na.locf and na.omit but I think none of them do what I need.

thanks.

Answer 1

I'm not familiar with the Zoo Series but this is how you do it with vectors. This Should work.

x = c(NA,1,2,3)
x[ is.na(x) ] <- 0 
print (x)

Answer 2

Use na.fill. If z is the zoo series:

na.fill(z, fill = 0)