naniar (version 0.4.2)

shadow_expand_relevel: Expand and relevel a shadow column with a new suffix

Description

Internal function to handle appropriate expansion and releveling of shadow variables.

Usage

shadow_expand_relevel(.var, suffix)

Arguments

.var

a variable in a data.frame

suffix

a character suffix to add to NA_, e.

Value

a factor with expanded levels

Examples

# NOT RUN {
df <- tibble::tribble(
  ~wind, ~temp,
  -99,    45,
  68,    NA,
  72,    25
)

dfs <- bind_shadow(df)

test_shade <- dfs$wind_NA

shadow_expand_relevel(test_shade, "weee")

dfs %>%
  mutate(temp_NA = shadow_expand_relevel(temp_NA, "weee"))


# test that this breaks
shadow_expand_relevel(airquality, "weee")
# }

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