Message-ID: <632713B4-7988-4A95-9F36-74C3092C48B3@me.com>
Date: 2012-11-30T15:57:17Z
From: Marc Schwartz
Subject: subset data frame by variable with missing value
In-Reply-To: <1354289225240-4651439.post@n4.nabble.com>
On Nov 30, 2012, at 9:27 AM, ramoss <ramine.mossadegh at finra.org> wrote:
> Hello,
>
> I have a variable in a data frame that contains NA values. I just want to
> subset so that I get the obs where that variable is missing.
> In SAS I would do:
>
> data missing;
> set test;
> if myvalue=' ';
> run;
>
> How can I perform this simple task in R?
>
> Thanks in advance for your help.
The easiest is probably:
NewDF <- subset(DF, is.na(myvalue))
See ?is.na
Regards,
Marc Schwartz