Check if database is in 'long' format

Checks whether key.variable is duplicated AND there are no separated values in coding variables and returns TRUE of FALSE.

is_long(key_variable, columns, value_sep = ";")

Arguments

key_variable	A variable used to identify unique articles/studies.
columns	A set of columns containing coded data from within a dataframe
value_sep	A character used to separate values within the data.

Value

Logical argument, TRUE or FALSE

Examples

if (FALSE) {
is_long(columns, value_sep = ';');
}