strata.seroincidence.by {serocalculator}

Extract the Strata attribute from an object, if present

Description

Extract the Strata attribute from an object, if present

Usage

## S3 method for class 'seroincidence.by'
strata(x)

Arguments

x

any R object

Value

• a tibble::tibble() with strata in rows, or

• NULL if x does not have a "strata" attribute