Checks the number of columns of a data frame.
check_ncol(x, ncol = TRUE, x_name = substitute(x), error = TRUE)The object to check.
A flag indicating whether x should have columns (versus no columns) or a missing value indicating no requirements or a count or count range of the number of columns.
A string of the name of the object x.
A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails.
An invisible copy of x (if it doesn't throw an error).
check_nrow and check_data
check_ncol(data.frame(x = 1), error = FALSE)
#> Warning: `check_ncol()` was deprecated in checkr 0.5.1.
#> Please use `chk::check_dim()` instead.
check_ncol(data.frame(x = 1:2), ncol = 1, error = FALSE)
#> Warning: `check_ncol()` was deprecated in checkr 0.5.1.
#> Please use `chk::check_dim()` instead.