[R] Odp: Generating unque patient IDs

[Petr PIKAL]

Hi
> 
> Dear group,
> 
> I am trying to prepare a NONMEM friendly dataset for population PK
> analysis. My patient IDs are 10 digit long and NONMEM is losing precison
> and rouding the last couple of digits.  I need to generate unique 
Patient
> IDs fromt he current 10-digit IDs.  Ihave total 250 subjects so I
> appreciate if anybody can suggest me a way to code this in R.

I would start with

?abbreviate
and check uniqueness with 
?unique or ?duplicated

Regards
Petr


> 
> Regards,
> Ayyappa
> 
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> 
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