Construct a NormativeReference
Usage
NormativeReference(
metric,
strata,
source = NA_character_,
version = NA_character_,
unit = NA_character_
)
Arguments
- metric
Character metric name.
- strata
data.frame with one row per stratum; must include numeric
mean and sd columns (optionally n); remaining columns
are matching keys.
- source
Character citation (default NA).
- version
Character version tag (default NA).
- unit
Character unit (default NA).
Value
A NormativeReference object.
Examples
ref <- NormativeReference(
"gait_speed",
strata = data.frame(
sex = c("M", "F"), mean = c(1.34, 1.24), sd = c(0.20, 0.19), n = c(50, 50)
),
source = "Bohannon 2011", unit = "m/s"
)
zScore(ref, 1.10, by = list(sex = "M"))
#> [1] -1.2