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childsds (version 0.6)
make_percentile_tab: calculate raw values
Description
Calculate raw values for percentile curve
Usage
make_percentile_tab(refs, item, perc = c(1, 5, 50, 95, 99), stack = F, sex, age)
Arguments
refs
Refgroup object
item
name of the measurement item
perc
vector of percentiles to be calculated
stack
wether or not the data should be stacked, stacked data would most possibly be used in ggplot2
sex
name of the sex variable (character) if different from sex, ignored
age
name of the age variable (character) if different from age, ignored
Value
data frame either with the different percentiles as columns or, if stacked, as data frame with four columns: age, sex, variable, value
Details
calculates quantile values for given RefGroup and given percentiles