Here there's an example:
car <- data.frame(matrix(c(2,NA,5,NA,7,6), nrow=3, ncol=2, byrow = FALSE))
colnames(car) <- c("a","b")
How can I write this part without repeating the code?
car$a[is.na(car$a)] <- 0
car$b[is.na(car$b)] <- 0
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Ronak Shah
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Does this answer your question? [How do I replace NA values with zeros in an R dataframe?](https://stackoverflow.com/questions/8161836/how-do-i-replace-na-values-with-zeros-in-an-r-dataframe) – Ronak Shah Sep 11 '20 at 10:44
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`car[is.na(car)] – Ronak Shah Sep 11 '20 at 10:45