zhca | R Documentation |
Calculate z-scores using with the WHO growth standards (0-5 years).
zhca(headc, age, sex, trim_extreme_z = FALSE)
headc |
Head circumference (cm) |
age |
Age (days) |
sex |
Sex, coded as "F" and "M" |
trim_extreme_z |
Replace extreme scores (ZHCA > 5 or ZHCA < -5),
described as biologically implausible by WHO, with |
A vector of head circumference-for-length z-scores
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