bmi_internal: Internal helper functions for 'get_BMI_percentile'

In paulhibbing/PAutilities: Streamline Physical Activity Research

Internal helper functions for get_BMI_percentile

Description

Internal helper functions for get_BMI_percentile

Usage

percentile_age(age_mos, age_yrs)

percentile_BMI(BMI, weight_kg, height_cm)

percentile_index(reference, age_mos)

percentile_lms(reference, colname, lesser_index, greater_index, increment)

percentile_reference(sex)

percentile_sex(sex = c("error", "male", "female"))

percentile_z(BMI, L, M, S)

percentile_back_calculate(p = 0.95, L, M, S)

Arguments

age_mos	age in months (optional)
age_yrs	age in years
BMI	numeric. Body mass index
weight_kg	Weight in kilograms
height_cm	height in centimeters
reference	reference subset for calculations
colname	character. Column name of reference on which to operate
lesser_index	lower match index of reference
greater_index	upper match index of reference
increment	proportional distance between reference[lesser_index, ] and reference[greater_index, ]
sex	Character scalar indicating participant's sex
L	lambda
M	mu
S	sigma
p	percentile for which to back-calculate a BMI (must be between 0 and 1)

See Also

Flegal and Cole (2013)

paulhibbing/PAutilities documentation built on July 5, 2025, 1:33 a.m.