Structure of a dataset comparison, without identifiers

str() dispatches on the object rather than routing through print.built_comparison(), so the default method would print the rows attribute verbatim, including the identifier vectors. In this group's data an identifier is a medical record number concatenated with a date of surgery.

Usage

# S3 method for class 'built_comparison'
str(object, ...)

Arguments

object

An object of class built_comparison.

...

Passed to the underlying utils::str() call.

Value

NULL, invisibly. Called for its side effect.

Details

The hazard here is incidental disclosure, not retrieval. str() is what people type reflexively to inspect an object, and its output is routinely pasted into issues, chat, and logs, so PHI arrives without anyone having asked for it. Deliberate retrieval stays available and unchanged: attr(x, "rows")$only_oracle and $only_r.

See also

print.built_comparison()