cols_condense() takes a spec object and condenses its definition by setting
the default column type to the most frequent type and only listing columns
with a different type.
spec() extracts the full column specification from a tibble
created by readr.
The data frame object to extract from
A col_spec object.
df <- vroom(vroom_example("mtcars.csv")) s <- spec(df) s cols_condense(s)
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