Return a tibble in shadow matrix form, where the variables are the same but have a suffix _NA attached to distinguish them.

# S3 method for data.frame
as_shadow(data, ...)

Arguments

data

dataframe

...

selected variables to use

Examples

as_shadow(airquality)
#> # A tibble: 153 x 6 #> Ozone_NA Solar.R_NA Wind_NA Temp_NA Month_NA Day_NA #> <fct> <fct> <fct> <fct> <fct> <fct> #> 1 !NA !NA !NA !NA !NA !NA #> 2 !NA !NA !NA !NA !NA !NA #> 3 !NA !NA !NA !NA !NA !NA #> 4 !NA !NA !NA !NA !NA !NA #> 5 NA NA !NA !NA !NA !NA #> 6 !NA NA !NA !NA !NA !NA #> 7 !NA !NA !NA !NA !NA !NA #> 8 !NA !NA !NA !NA !NA !NA #> 9 !NA !NA !NA !NA !NA !NA #> 10 NA !NA !NA !NA !NA !NA #> # ... with 143 more rows