Recode variables in place — tda_recode • tdaR

TDA's recode: replaces variable values by expressions over the current matrix. Verified in the suite against plain R recoding.

Usage

tda_recode(data, ..., options = list())

Arguments

data: data frame.
...: named recode expressions in TDA syntax, e.g. x = "x * 2"; further arguments to tda_run go through options.
options: list passed to tda_run.

Value

the recoded data frame.

Examples

d <- data.frame(age = c(17, 25, 40), inc = c(1, 2, 3))
# TDA's expression language: ge() is >=, so age becomes an adult flag
tda_recode(d, age = "ge(age, 18)", inc = "inc * 1000")
#>   age  inc
#> 1   0 1000
#> 2   1 2000
#> 3   1 3000