[R] how to plot growth chart like this

[David Winsemius]

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
>
> can you give some suggestions about the functions I should use?

Looking first at:

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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David Winsemius, MD
Alameda, CA, USA