tabulate: Tabulation for Vectors

In robertzk/monadicbase: The R Base Package

Description

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

Usage

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

Arguments

bin	a numeric vector (of positive integers), or a factor. Long vectors are supported.
nbins	the number of bins to be used.

Details

tabulate is the workhorse for the table function.

If bin is a factor, its internal integer representation is tabulated.

If the elements of bin are numeric but not integers, they are truncated by as.integer.

Value

An integer vector (without names). There is a bin for each of the values 1, ..., nbins; values outside that range and NAs are (silently) ignored.

On 64-bit platforms bin can have 2^31 or more elements and hence a count could exceed the maximum integer: this is currently an error.

See Also

table, factor.

Examples

tabulate(c(2,3,5))
tabulate(c(2,3,3,5), nbins = 10)
tabulate(c(-2,0,2,3,3,5))  # -2 and 0 are ignored
tabulate(c(-2,0,2,3,3,5), nbins = 3)
tabulate(factor(letters[1:10]))

robertzk/monadicbase documentation built on May 27, 2019, 10:35 a.m.