Usage
prop(x, data = parent.frame(), ..., level = NULL, long.names = TRUE,
sep = ".", format = "proportion")count(x, data = parent.frame(), ..., format = "count")
perc(x, data = parent.frame(), ..., format = "percent")
Arguments
x
an R object, usually a formula
data
a data frame in which x is to be evaluated
...
arguments passed through to tally level
the level for which counts, proportions or percents are
calculated
long.names
a logical indicating whether long names should be
when there is a conditioning variable
sep
a character used to separate portions of long names
format
one of proportion, percent, or count,
possibly abbrevaited