Checks the names and order of columns in data.

check_cols(
  data,
  colnames = NULL,
  exclusive = FALSE,
  ordered = FALSE,
  data_name = substitute(data)
)

Arguments

data

The data frame to check.

colnames

A character vector of the column names.

exclusive

A flag indicating whether data can include additional columns.

ordered

A flag indicating whether the order of the columns has to match.

data_name

A string of the name of data.

Value

Throws an informative error or returns an invisible copy of the data.

Details

By default (colnames = NULL) data must include at least one column. To check for no columns set colnames = character(0).