R: Subsetting a ff vector or ffdfdata frame

subset.ff {ffbase} | R Documentation

## 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

[Package ffbase version 0.13.1 Index]