key_colnames: Grab any keys associated to an epi_df

In cmu-delphi/epiprocess: Tools for basic signal processing in epidemiology

Grab any keys associated to an epi_df

Description

Grab any keys associated to an epi_df

Usage

key_colnames(x, ...)

## Default S3 method:
key_colnames(x, ...)

## S3 method for class 'data.frame'
key_colnames(x, other_keys = character(0L), exclude = character(0L), ...)

## S3 method for class 'epi_df'
key_colnames(x, exclude = character(0L), ...)

## S3 method for class 'epi_archive'
key_colnames(x, exclude = character(0L), ...)

Arguments

x	a data.frame, tibble, or epi_df
...	additional arguments passed on to methods
other_keys	an optional character vector of other keys to include
exclude	an optional character vector of keys to exclude

Value

If an epi_df, this returns all "keys". Otherwise NULL.

cmu-delphi/epiprocess documentation built on Oct. 29, 2024, 5:37 p.m.