Thank you very much for the reference about methodology.
I will try the GAMLESS package.

*Yao Zhu*
*Department of Urology
Fudan University Shanghai Cancer Center
Shanghai, China*


2013/2/11 David Winsemius <dwinsemius@comcast.net>

>
> On Feb 10, 2013, at 11:36 PM, zhu yao wrote:
>
>  Dear R-users
>>
>> I want to generate a growth chart like this:
>> http://php.med.unsw.edu.au/**embryology/images/9/9a/WHO-XX_**
>> length_birth_to_2_years.png<http://php.med.unsw.edu.au/embryology/images/9/9a/WHO-XX_length_birth_to_2_years.png>
>>
>> can you give some suggestions about the functions I should use?
>>
>
> Looking first at:
>
> http://www.who.int/entity/**childgrowth/standards/Chap_2.**pdf<http://www.who.int/entity/childgrowth/standards/Chap_2.pdf>
>
> ANd then doing a simple search:
>
> > require(sos)
> Loading required package: sos
> Loading required package: brew
>
> Attaching package: ‘sos’
>
> The following object(s) are masked from ‘package:utils’:
>
>     ?
>
> > findFn("LMS method")
> found 83 matches;  retrieving 5 pages
> 2 3 4 5
> Downloaded 76 links in 32 packages.
>
> I beleive the LMS quantile method in the VGAM package is the same as used
> by WHO.
>
> --
> David
>
>
>> Thanks
>>
>> *Yao Zhu*
>> *Department of Urology
>>
>> Fudan University Shanghai Cancer Center
>> Shanghai, China*
>>
>>         [[alternative HTML version deleted]]
>>
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>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> David Winsemius, MD
> Alameda, CA, USA
>
>

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