[R] Remove

[Jeff Newmiller]

subset( DM, "B" != x )

This is covered in the Introduction to R document that comes with R.
-- 
Sent from my phone. Please excuse my brevity.

On December 6, 2017 3:21:12 PM PST, David Winsemius <dwinsemius at comcast.net> wrote:
>
>> On Dec 6, 2017, at 3:15 PM, Ashta <sewashm at gmail.com> wrote:
>> 
>> Hi all,
>> In a data set I have group(GR) and two variables   x and y. I want to
>> remove a  group that have  the same record for the x variable in each
>> row.
>> 
>> DM <- read.table( text='GR x y
>> A 25 125
>> A 23 135
>> A 14 145
>> A 12 230
>> B 25 321
>> B 25 512
>> B 25 123
>> B 25 451
>> C 11 521
>> C 14 235
>> C 15 258
>> C 10 654',header = TRUE, stringsAsFactors = FALSE)
>> 
>> In this example the output should contain group A and C  as group B
>> has   the same record  for the variable x .
>> 
>> The result will be
>> A 25 125
>> A 23 135
>> A 14 145
>> A 12 230
>> C 11 521
>> C 14 235
>> C 15 258
>> C 10 654
>
>Try:
>
>DM[ !duplicated(DM$x) , ]
>> 
>> How do I do it R?
>> Thank you.
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>> PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
>David Winsemius
>Alameda, CA, USA
>
>'Any technology distinguishable from magic is insufficiently advanced.'
>  -Gehm's Corollary to Clarke's Third Law
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.