Creates the model specifications for xname — make_xname • chartplotter

Creates the model specifications for xname

make_xname(yname, xnames, user_model, current_age)

Arguments

yname: String indicating the dependent variable
xnames: Character vector of available names to choose from. It is assumed all variables named in xnames have complete data. Any brokenstick variable should have names like paste(yname, d, sep = "_"), where d is a vector contuining decimal ages.
user_model: Model number (1-4), indicating type of model the user wants. See details.
current_age: Current age (in decimal years)

Value

A character vector with the xname specification

Examples

xnames <- c(
  "sex", "ga", "bw", "hgt_0", "hgt_1", "hgt_3",
  "wgt_0", "wgt_1", "wgt_2", "junk"
)

# note that it does not return hgt2
chartplotter:::make_xname(
  yname = "hgt", xnames = xnames, user_model = 2,
  current_age = 2
)
#> [1] "sex"