Dear David,

This information is very helpful, thanks.

Best,
Shige

On Wed, Oct 28, 2009 at 10:55 AM, David Winsemius <dwinsemius@comcast.net>wrote:

>
> On Oct 28, 2009, at 10:18 AM, David Winsemius wrote:
>
>  You might want to take a look at this article by WEI,  PERE, KOENKER, AND
>> HE. Its in the research files of Koenker who is a regular contributor to
>> R-help:
>>
>> http://www.econ.uiuc.edu/~roger/research/growth/growth.pdf<http://www.econ.uiuc.edu/%7Eroger/research/growth/growth.pdf>
>>
>> In particular it mentions lmsqreg, which would be a package that
>> implements the L M S methodology used by the CDC to produce these files. the
>> above paper discusses that package as a starting point and then offers an
>> alternative using quantreg.
>>
>> The lmsqreg package can be acquired with this code:
>>
>> install.packages("lmsqreg", repos="http://R-Forge.R-project.org")
>> library(lmsqreg)
>>
>> There is a function, zscores, that might illustrate how to apply the L, M,
>> S columns in those CDC datasets. You might consider posting on the
>> Bioconductor list if these queries are unsuccessfl or contacting Vincent
>> Carey, who is a Bioconductor Core member and appears to have done quite a
>> bit of work in related areas:
>>
>> http://biosun1.harvard.edu/~carey/ <http://biosun1.harvard.edu/%7Ecarey/>
>>
>> (I have taken the liberty of correcting the spelling of the subject line
>> so it can be found on searches more easily. Seems possible that searching
>> with that alternate spelling might improve your subsequent searches as
>> well.)
>>
>
> I had corrected the subject line in my response to Orvalho (not noticing
> that he had not copied the list in his reply to me), but he then pointed out
> to me that this may be of general interest, and I suggested that I should be
> the one to send a copy to r-help. I then forgot to substitute the English
> spelling of "anthropometric".
>
>
>  --
>> David
>>
>> On Oct 28, 2009, at 3:24 AM, Orvalho Augusto wrote:
>>
>>  Thanks!
>>>
>>> Yes I want a program in R that uses that data and produce percentiles
>>> and z-scores. Is there any ready program or not?
>>>
>>> Caveman
>>>
>>> On Wed, Oct 28, 2009 at 2:16 AM, David Winsemius <dwinsemius@comcast.net>
>>> wrote:
>>>
>>>>
>>>> On Oct 27, 2009, at 7:27 PM, Orvalho Augusto wrote:
>>>>
>>>>  Hey greate ones, is there any way to have something similar to stata
>>>>> zanthro on R?
>>>>>
>>>>
>>>> I suppose it is possible that someone will know what is in that stata
>>>> package, but it would make more sense if you were to summarize what
>>>> features
>>>> would be of use.
>>>>
>>>>
>>>>> I want a package that contains functions to give antropometric values,
>>>>> at least for the children.
>>>>>
>>>>
>>>> You are perhaps trying to map ht, weight, and head circumference to
>>>> age-specific percentiles???
>>>>
>>>> http://www.cdc.gov/growthcharts/percentile_data_files.htm
>>>>
>>>> --
>>>>
>>>> David Winsemius, MD
>>>> Heritage Laboratories
>>>> West Hartford, CT
>>>>
>>>>
>>>>
>> David Winsemius, MD
>> Heritage Laboratories
>> West Hartford, CT
>>
>> ______________________________________________
>> R-help@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
> Heritage Laboratories
> West Hartford, CT
>
> ______________________________________________
> R-help@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.
>

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