R: Allocates a data frame with given column classes

dataFrame {R.utils} | R Documentation

## Allocates a data frame with given column classes

### Description

Allocates a data frame with given column classes.

### Usage

    ## Default S3 method:
    dataFrame(colClasses, nrow=1, ...)

### Arguments

`colClasses` | A `character` `vector` of column classes, cf. `read.table`.
`nrow` | An `integer` specifying the number of rows of the allocated data frame.
`...` | Not used.

### Value

Returns an NxK `data.frame` where N equals `nrow` and K equals `length(colClasses)`.

### See Also

`data.frame`.

### Examples

      df <- dataFrame(colClasses=c(a="integer", b="double"), nrow=10)
      df[,1] <- sample(1:nrow(df))
      df[,2] <- rnorm(nrow(df))
      print(df)

[Package R.utils version 2.7.0 Index]