freq(x, w, returnMatrix = FALSE, digits = 6, na.print = "",
plot = getOption("descr.plot"), barchart = "count", ...)TRUE, the return value will be of class
"matrix".print.default.NA values in printed output (see
print.default).TRUE (default), a barplot is produced.
You may put options(descr.plot = FALSE) in your barplot.x has the attribute "label" and
returnMatrix is false. Otherwise, a object of class "matrix".