In growthcharts/centile: Translate Measurements, Z-Scores and Centiles with the RIF format

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centile

The centile package

• Defines the reference interchange format (RIF), a simple text format for exchanging growth references;
• Provides tools for reading and validating RIF files;
• Names and loads references as R objects;
• Converts between measurements, Z-scores and centiles;
• Contains built-in WHO Multicentre Growth Standard for height, weight, head circumference and body mass index.

The currently supported distributions are normal (NO), Lambda-Mu-Sigma (LMS), Box-Cox Green Cole (BCCG), Box-Cox Power Exponential (BCPE) and Box-Cox t (BCT).

Installation

You can install the development version of centile with:

remotes::install_github("growthcharts/centile")

Examples

Generate a reference table for the WHO Multicentre Growth Standard for weight of boys aged 0-5 years:

library(centile)
calculate_centile_table(x = 0:5, z = -2:2, refcode = "who_2006_wgt_male_")

We obtain percentiles as follows:

library(centile)
calculate_centile_table(x = 0:5, p = c(10, 50, 90), refcode = "who_2006_wgt_male_")

growthcharts/centile documentation built on Oct. 26, 2024, 3:10 p.m.