Typed zero-row schema for a forensic-toxicology sample table

Describes the columns a caller must supply for matrix-aware quantitation. Returns a zero-row data frame; it never fabricates measurements.

Usage

morie_tox_matrix_schema()

Value

A zero-row data.frame with a "role" attribute mapping each column to "identifier", "matrix", "measurement", or "quality".

Examples

morie_tox_matrix_schema()
#>  [1] case_id         analyte         matrix          conc           
#>  [5] conc_units      lod             loq             decomp_stage   
#>  [9] submersion_days censored       
#> <0 rows> (or 0-length row.names)