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, ...)
| data | dataframe |
|---|---|
| ... | selected variables to use |
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