RE: [R] NA erase your data trick

From: Daniel Nordlund <res90sx5_at_verizon.net>
Date: Tue 17 May 2005 - 16:11:38 EST

> -----Original Message-----
> From: r-help-bounces@stat.math.ethz.ch [mailto:r-help-bounces@stat.math.ethz.ch]
> On Behalf Of Anders Schwartz Corr
> Sent: Monday, May 16, 2005 10:38 PM
> To: r-help@stat.math.ethz.ch
> Subject: [R] NA erase your data trick
>
>
> Oops,
>
> I just erased all my data using this gizmo that I thought would replace -9
> with NA.
>
> A) Can I get my tcn5 back?

I don't think there is any going back.

>
> B) How do I do it right next time, I learned my lesson, I'll never do it
> again, I promise!
>

How about something like

x[x == -9] <- NA

Dan Nordlund
Bothell, WA

> Anders Corr
>
> > for(i in 1:dim(tcn5)[2]){ ##for the number of columns
> + for(n in 1:dim(tcn5)[1]){ ##for the number of rows
> + tcn5[is.na(tcn5[n,i]) | tcn5[n,i] == -9] <- NA
> +
> + }
> + }
> >
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue May 17 17:05:10 2005

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