Cc:
Sent: Friday, November 30, 2012 10:27 AM
Subject: [R] subset data frame by variable with missing value
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;
I found the answer;
Its mymissing <- subset(mydata,is.na(myvar))
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Le vendredi 30 novembre 2012 à 07:27 -0800, ramoss a écrit :
> 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;
>
> H
lp-bounces@r-
> project.org] On Behalf Of ramoss
> Sent: Friday, November 30, 2012 4:27 PM
> To: r-help@r-project.org
> Subject: [R] subset data frame by variable with missing value
>
> Hello,
>
> I have a variable in a data frame that contains NA values. I just want
> to
On Nov 30, 2012, at 9:27 AM, ramoss 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 t
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.
--
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