[R] Odp: Generating unque patient IDs

[jim holtman]

One of the reasons that I specified the 'seq' command as it was was to
make sure it used numerics:

> x <- seq(123456789012.0, length = 10, by = 1.0)
> x
 [1] 123456789012 123456789013 123456789014 123456789015 123456789016
123456789017 123456789018
 [8] 123456789019 123456789020 123456789021
> str(x)
 num [1:10] 123456789012 123456789013 123456789014 123456789015 123456789016 ...
>

On Wed, Jan 11, 2012 at 12:14 PM, David Winsemius
<dwinsemius at comcast.net> wrote:
> Unfortunately the "rounding effect" (which I assumed was related to the
> automatic conversion from integer to numeric) is only going to show up above
> 2147483647L, so I question whether you really demonstrated a solution to
> what I understood was the fundamental problem.
>
> --
> David.
>
> On Jan 11, 2012, at 11:50 AM, jim holtman wrote:
>
>> Does this do it for you:
>>
>>> sprintf("%010.0f", seq(1000000000.0, length = 250, by = 1.0))
>>
>>  [1] "1000000000" "1000000001" "1000000002" "1000000003" "1000000004"
>> "1000000005" "1000000006"
>>  [8] "1000000007" "1000000008" "1000000009" "1000000010" "1000000011"
>> "1000000012" "1000000013"
>> [15] "1000000014" "1000000015" "1000000016" "1000000017" "1000000018"
>> "1000000019" "1000000020"
>> [22] "1000000021" "1000000022" "1000000023" "1000000024" "1000000025"
>> "1000000026" "1000000027"
>> [29] "1000000028" "1000000029" "1000000030" "1000000031" "1000000032"
>> "1000000033" "1000000034"
>> [36] "1000000035" "1000000036" "1000000037" "1000000038" "1000000039"
>> "1000000040" "1000000041"
>> [43] "1000000042" "1000000043" "1000000044" "1000000045" "1000000046"
>> "1000000047" "1000000048"
>> [50] "1000000049" "1000000050" "1000000051" "1000000052" "1000000053"
>> "1000000054" "1000000055"
>> [57] "1000000056" "1000000057" "1000000058" "1000000059" "1000000060"
>> "1000000061" "1000000062"
>> [64] "1000000063" "1000000064" "1000000065" "1000000066" "1000000067"
>> "1000000068" "1000000069"
>> [71] "1000000070" "1000000071" "1000000072" "1000000073" "1000000074"
>> "1000000075" "1000000076"
>> [78] "1000000077" "1000000078" "1000000079" "1000000080" "1000000081"
>> "1000000082" "1000000083"
>> [85] "1000000084" "1000000085" "1000000086" "1000000087" "1000000088"
>> "1000000089" "1000000090"
>> [92] "1000000091" "1000000092" "1000000093" "1000000094" "1000000095"
>> "1000000096" "1000000097"
>>
>> On Wed, Jan 11, 2012 at 11:32 AM, Petr PIKAL <petr.pikal at precheza.cz>
>> wrote:
>>>
>>> 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
>>>>
>>>>   [[alternative HTML version deleted]]
>>>>
>>>>
>>>> ______________________________________________
>>>> R-help at r-project.org mailing list
>>>> 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.
>>>
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> 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.
>>
>>
>>
>>
>> --
>> Jim Holtman
>> Data Munger Guru
>>
>> What is the problem that you are trying to solve?
>> Tell me what you want to do, not how you want to do it.
>>
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> 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.
>
>
> David Winsemius, MD
> West Hartford, CT
>



-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.