Defining missing values in R?

Asked Mar 25 '20 at 10:28

Active Mar 25 '20 at 10:28

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I'm interested in learning more about system missings in R and would be grateful for any advice.

For example, in SPSS this is fairly straightforward and I would usually do the following:

*Define missing values using 8 and 9

MISSING VALUES income (8, 9).

*Remove defined missing values

MISSING VALUES income ().

Firstly, is it necessary to do this in R, if so how?

Grateful for any advice.

Cheers.

asked Mar 25 '20 at 10:28

John Wildman

Maybe read about `?NA` – zx8754 Mar 25 '20 at 10:31
is.na(x) <- value – John Wildman Mar 25 '20 at 10:42
so something like: data2018$income2 <- (is.na(data2018$income) <- 9) – John Wildman Mar 25 '20 at 10:43

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