ffbase: binned_tabulate – R documentation

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binned_tabulate

Fast tabulating in different bins

Description

binned_sum implements fast tabulating for given bins by calling c-code. It also returns the number of NA's per bin. Please note that incorrect use of this function may crash your R-session. the values of bins must be between 1 and nbins and may not contain NA. The values of x must be between 1 and nlevels.

Usage

binned_tabulate(x, bin, nbins = max(bin), nlevels = nlevels(x), ...)

## Default S3 method:
binned_tabulate(x, bin, nbins = max(bin), nlevels = nlevels(x), ...)

## S3 method for class 'ff'
binned_tabulate(x, bin, nbins = max(bin), nlevels = nlevels(x), ...)

Arguments

`x`	`factor` or `integer` vector with the data to be tabulated
`bin`	`integer` vector with the bin number for each data point
`nbins`	`integer` maximum bin number
`nlevels`	`integer` number of levels used in x
`...`	used by binned_tabulate.ff

Value

numeric matrix where each row is a bin and each column a level

ffbase

Basic Statistical Functions for Package 'ff'

v0.13.3

GPL-3

Authors

Edwin de Jonge, Jan Wijffels, Jan van der Laan

Initial release