Returns an empty, typed data.frame documenting the columns
morie_taphonomy_preservation_delta expects. No rows are
fabricated – the caller fills it with real comparanda.
Value
A zero-row data.frame; each column has the correct type and a
"role" attribute ("treatment", "covariate",
"measurement", or "outcome").
Examples
str(morie_taphonomy_schema())
#> 'data.frame': 0 obs. of 13 variables:
#> $ lime_treatment : int
#> $ temp_c : num
#> $ humidity_pct : num
#> $ arid : int
#> $ casket_sealed : int
#> $ reinterment_count : int
#> $ exposure_days : num
#> $ decades_elapsed : num
#> $ ct_density_hu : num
#> $ ct_void_fraction : num
#> $ pxrf_ca_ppm : num
#> $ hyperspectral_resin: int
#> $ preservation_score : num
#> - attr(*, "role")= Named chr [1:13] "treatment" "covariate" "covariate" "covariate" ...
#> ..- attr(*, "names")= chr [1:13] "lime_treatment" "temp_c" "humidity_pct" "arid" ...