ffbase (version 0.6-2)

tabulate.ff: Tabulation for ff vectors

Description

tabulate.ff takes the integer-valued ff vector bin and counts the number of times each integer occurs in it.

Usage

tabulate.ff(bin, nbins = max(bin, 1, na.rm = TRUE))

Arguments

bin

factor to be binned.

nbins

number of bins

Value

• integer vector or if FFRETURN is TRUE a ff vector

Details

Behaviour of tabulate

Examples

#create a vector of 10 million
x <- ff(vmode="integer", length=1e7)

# fill first 200 with values
x[1:100] <- 1
x[101:200] <- 2

# lets count
tabulate.ff(x)