[R] create groups from data with duplicates, such that each group has a duplicate represented once

[PIKAL Petr]

Hi

Instead of attachment which is usually removed you should use dput

Something like output from
dput(head(yourdata,30))

To remove duplicate values see

unique or duplicated

Cheers
Petr

> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Kevin Wamae
> Sent: Thursday, January 17, 2019 1:29 AM
> To: r-help using r-project.org
> Subject: [R] create groups from data with duplicates, such that each group has
> a duplicate represented once
>
> Hi, I have a sequencing run with ~3000 samples (attached dataset). The
> samples were initially tagged and amplified by PCR in duplicate. The tags used
> range from MID01 to MID26.
>
> MID01-MID13 were used for pair 1 while MID14-MID26 were used for pair 2.
> The tags are re-used to allow samples to be pooled.
>
> The pooling process will involve mixing samples with MID01-26 into the first
> group, the next group samples with MID01-26 into the second group and so on.
>
> I'm hoping to get an R script that can create these groups such that for each
> group, any of the Tags appears only once. An example is shown below.
>
> ID
>
> TagA
>
> TagB
>
> group
>
> 180
>
> MID03
>
> MID10
>
> group1
>
> 181
>
> MID04
>
> MID06
>
> group1
>
> 182
>
> MID05
>
> MID07
>
> group1
>
> 183
>
> MID03
>
> MID09
>
> group2
>
> 184
>
> MID04
>
> MID10
>
> group2
>
> 185
>
> MID05
>
> MID06
>
> group2
>
> 186
>
> MID01
>
> MID06
>
> group3
>
> 187
>
> MID02
>
> MID07
>
> group3
>
> 188
>
> MID03
>
> MID08
>
> group3
>
>
>
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