[R] Replace individual values in a data frame with NA

[Michael Kubovy]

On Feb 9, 2007, at 11:10 AM, Jason Horn wrote:

> I'd like to replace a value in a data frame with an NA, but can't
> figure out how.
>
> For example, say you have
>
> a<-c(1,2,3,4)
> b<-c(5,6,7,8)
> data<-data.frame(a,b)
>
> Now, how would you set the third row of the second column ( data
> [[3,2]] ) to NA?

a<-c(1,2,3,4)
b<-c(5,6,7,8)
data<-data.frame(a,b)
data[3, 2] <- NA

?Extract
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