This is the underlying function, the exposed functions are pct_weight_for_age() and pct_height_for_age() Based on tables from WHO: http://www.who.int/childgrowth/standards/height_for_age/en/
pct_for_age_generic(
age = NULL,
value = NULL,
sex = NULL,
variable = "weight",
...
)
age in years
height in kg. Optional, if specified, will calculate closest percentile and return in list as `percentile`
either `male` or `female`
weight or height?
parameters passed to `read_who_table()`