optional labels for the variables. The default is
the names of the variable passed or the names attribute if the
variable has more than 1 dimension.
display.na
logical - whether to display counts of NAs.
bin.range
minimum and maximum of the desired range of integer values.
Ignored if x is not numeric.
include.empty
logical - whether to display empty bins.
Value
A list with one or more components. Each component includes the
values of the relevant variable as the names.
Details
freq calls integer.frequency if x is numeric, otherwise
table to get the frequency counts and builds a list with one or more
components containing the value labels and counts.