How do I replace NA values with zeros in an R dataframe?

Question

I have a data frame and some columns have NA values.

How do I replace these NA values with zeroes?

Answer 1

Another dplyr pipe compatible option with tidyrmethod replace_na that works for several columns:

require(dplyr)
require(tidyr)

m <- matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
d <- as.data.frame(m)

myList <- setNames(lapply(vector("list", ncol(d)), function(x) x <- 0), names(d))

df <- d %>% replace_na(myList)

You can easily restrict to e.g. numeric columns:

d$str <- c("string", NA)

myList <- myList[sapply(d, is.numeric)]

df <- d %>% replace_na(myList)