Test if an Object is an fr_spec
Examples
spec <- tbl_demog |> fr_table()
is.fr_spec(spec) # TRUE
#> [1] TRUE
is.fr_spec(mtcars) # FALSE
#> [1] FALSE
Test if an Object is an fr_spec
spec <- tbl_demog |> fr_table()
is.fr_spec(spec) # TRUE
#> [1] TRUE
is.fr_spec(mtcars) # FALSE
#> [1] FALSE