Package: cdcanthro
Title: Standardized Metrics Based on the CDC and WHO Growth Charts
Version: 0.4.0
Date: 2026-08-30
Authors@R: c(
    person("David", "Freedman",
           role = c("aut", "cre"),
           email = "DavidSFreedman@gmail.com",
           comment = c(ORCID = "0000-0001-8014-0289")),
    person("Carrie", "Daymont",
           role = "ctb",
           email = "cdaymont@pennstatehealth.psu.edu")
  )
Description: Calculation of sex- and age-standardized growth metrics using
    the LMS method (lambda-mu-sigma). The package includes functions for the CDC 
    Growth Charts (cdc_z) and the WHO Charts (who_z). Because CDC recommends 
    using the WHO Charts for children under 24 months and the CDC Charts among 
    older children, there can be large differences at age 2.0 years. For example, 
    a girl weighing 9.9 kg would be at the WHO 10th percentile on the day before 
    her second birthday, but at the CDC 2nd percentile the following day. 
    The 'gradual_z' function reduces the differences among 2- to 5-year-olds 
    by taking a weighted average of the CDC and WHO z-scores.
License: GPL-3
Encoding: UTF-8
LazyData: true
ByteCompile: true
NeedsCompilation: no
Depends: R (>= 3.5.0)
Imports: data.table (>= 1.15.0), stats, utils
Suggests: tibble
Packaged: 2026-08-30 14:51:44 UTC; davidfreedman
Author: David Freedman [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-8014-0289>),
  Carrie Daymont [ctb]
Maintainer: David Freedman <DavidSFreedman@gmail.com>
Repository: CRAN
Date/Publication: 2026-08-31 15:20:03 UTC
Built: R 4.7.0; ; 2026-08-31 23:51:27 UTC; windows
