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cdcanthro: Standardized Metrics Based on the CDC and WHO Growth Charts

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.

Version: 0.4.0
Depends: R (≥ 3.5.0)
Imports: data.table (≥ 1.15.0), stats, utils
Suggests: tibble
Published: 2026-08-31
DOI: 10.32614/CRAN.package.cdcanthro
Author: David Freedman ORCID iD [aut, cre], Carrie Daymont [ctb]
Maintainer: David Freedman <DavidSFreedman at gmail.com>
License: GPL-3
NeedsCompilation: no
Materials: NEWS
CRAN checks: cdcanthro results

Documentation:

Reference manual: cdcanthro.html , cdcanthro.pdf

Downloads:

Package source: cdcanthro_0.4.0.tar.gz
Windows binaries: r-devel: cdcanthro_0.4.0.zip, r-release: cdcanthro_0.4.0.zip, r-oldrel: cdcanthro_0.4.0.zip
macOS binaries: r-release (arm64): cdcanthro_0.4.0.tgz, r-oldrel (arm64): cdcanthro_0.4.0.tgz, r-release (x86_64): cdcanthro_0.4.0.tgz, r-oldrel (x86_64): cdcanthro_0.4.0.tgz
Old sources: cdcanthro archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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