Check a data frame against a named list of expected column classes

Compares the actual class of each column in df against the expected class defined in col_spec, prints a colored console summary grouped by status (match, mismatch, missing, extra), and returns a tidy data.frame invisibly.

Integer/numeric mismatches are flagged as compatible in the note column.

Usage

.check_col_spec(df, col_spec)

Arguments

df

A data.frame.

col_spec

A named list where names are column names and values are expected class strings (length-1 character).

Value

Invisibly returns a data.frame with columns column, actual, expected, status, note, sample.