> 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.
>
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David Winsemius
Alameda, CA, USA
'Any technology distinguishable from magic is insufficiently advanced.'
-Gehm's Corollary to Clarke's Third Law