R: Getting length of a ffdf dataframe

length.ffdf {ff} | R Documentation

## Getting length of a ffdf dataframe

### Description

Getting "length" (number of columns) of a ffdf dataframe

### Usage

    ## S3 method for class 'ffdf'
    length(x)

### Arguments

`x` | an `ffdf` object

### Value

integer number of columns

### Author(s)

Jens Oehlschlägel

### See Also

`dim.ffdf`, `length.ff`, `ffdf`

### Examples

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

[Package ff version 2.2-13 Index]