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Push parent variable's special values to child columns

Source: R/propagate_parent.R
propagate_parent.Rd

When a parent variable has one of the specified values (e.g., 0 or 97), set that same value in all child columns. This is useful when a parent question gates a set of follow-up questions.

Usage

propagate_parent(data, vars, parent_var, values = c(0, 97))

Arguments

data

A data frame.

vars

A character vector of child column names.

parent_var

A string giving the name of the parent column.

values

Numeric vector of parent values to propagate to children. Defaults to c(0, 97).

Value

data with child columns updated.

Examples

d <- data.frame(parent = c(0, 1, 97, 1), child1 = c(NA, 1, NA, 0))
propagate_parent(d, "child1", parent_var = "parent", values = c(0, 97))
#>   parent child1
#> 1      0      0
#> 2      1      1
#> 3     97     97
#> 4      1      0