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ffbase (version 0.13.3)

binned_sum: Fast summing in different bins

Description

binned_sum implements fast summing for given bins by calling c-code.

Usage

binned_sum(x, bin, nbins = max(bin), ...)

# S3 method for default binned_sum(x, bin, nbins = max(bin), ...)

# S3 method for ff binned_sum(x, bin, nbins = max(bin), ...)

Arguments

x

numeric vector with the data to be summed

bin

integer vector with the bin number for each data point

nbins

integer maximum bin number

...

used by binned_sum.ff

Value

numeric matrix where each row is a bin