ffbase (version 0.6-2)

subset.ff: Subsetting a ff vector or ffdfdata frame

Description

Subsetting a ff vector or ffdfdata frame

Usage

## S3 method for class 'ff':
subset(x, subset, ...)

Arguments

x

ff vector or ffdf data.frame to be subset

subset

an expression, ri, bit or logical ff vector that can be used to index x

...

not used

Value

• a new ff vector containing the subset, data is physically copied