Trying to replace NA with 1 [duplicate]

Question

I have variable a in a dataset b

NA
NA
NA
53
53
NA

I want the output as

I tried

b$a1[i1] <- ifelse(b$a[i1]=="NA", 1,b$a[i1])

But it is not getting replace. Format of a is list

Use is.na() function for checking whether the value is NA or not — Kunal Puri
– Kunal Puri, Commented May 12, 2016 at 9:02
I tried the above is.na(). It showing false for values but not showing true for NA — suresh
– suresh, Commented May 12, 2016 at 9:05

ArunK · Accepted Answer · 2016-05-12 09:01:41Z

3

The answer you are looking for is

b$a[is.na(b$a)] <- 1

answered May 12, 2016 at 9:01

ArunK

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Comments

akrun · Accepted Answer · 2016-05-12 09:04:34Z

0

We can use replace

 with(b, replace(a, is.na(a), 1))

answered May 12, 2016 at 9:04

akrun

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