Re: [R] tricky (for me) merging of data...more clarity

From: Tal Galili <tal.galili_at_gmail.com>
Date: Wed, 02 Mar 2011 11:40:45 +0200

Question,
How do you know that the following two rows should have NAs ?

1     16/02/87     NA     NA
1     17/02/87     NA     NA


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On Tue, Mar 1, 2011 at 11:06 AM, Grant Gillis <grant.j.gillis_at_gmail.com>wrote:

> 1 16/02/87 NA NA
> 1 17/02/87 NA NA
>

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