R: Virtual storage mode of ffdf

vmode.ffdf {ff} | R Documentation

## Virtual storage mode of ffdf

### Description

Function vmode returns the virtual storage mode of each ffdf column

### Usage

    ## S3 method for class 'ffdf'
    vmode(x, ...)

### Arguments

`x` | `ffdf`
`...` | ignored

### Value

a character vector with one element for each column

### Author(s)

Jens Oehlschlägel

### See Also

`vmode`, `ffdf`

### Examples

      vmode(as.ffdf(data.frame(a=as.double(1:26), b=letters)))
      gc()

[Package ff version 2.2-13 Index]