ffbase (version 0.12.7)

sum.ff: Sum of ff vector Elements

Description

sum returns the sum of all the values present in its arguments.

Usage

# S3 method for ff
sum(x, ..., na.rm = FALSE, range = NULL)

Arguments

x

a ff object

...

optional other (ff) objects

na.rm

should NA be removed?

range

a ri or an integer vector of length==2 giving a range restriction for chunked processing

Value

sum of elements