R: Reads the tabular data as a data frame

readDataFrame.TabularTextFile {R.filesets} | R Documentation

## Reads the tabular data as a data frame

### Description

Reads the tabular data as a data frame.

### Usage

    ## S3 method for class 'TabularTextFile'
    readDataFrame(this, con=NULL, rows=NULL, nrow=NULL, trimQuotes=FALSE, ..., debug=FALSE,
      verbose=FALSE)

### Arguments

`con` | (Internal) If a `connection`, then it is used, otherwise a new file connection is temporarly opened and used.
`rows` | (Optional) An `integer` `vector` specifying which rows to be read.
`nrow` | (Optional) An `integer` specifying how many rows to read. If specified, it corresponds to specifying `rows=seq_len(nrow)`.
`trimQuotes` | (Optional) If `TRUE`, quotes are trimmed from numeric columns before parsing them as numerics. This makes it possible to read quoted numeric values.
`...` | Passed to internal `*getReadArguments()`.
`debug` | If `TRUE`, additional details on the file and how it was read is returned as part of the attributes.
`verbose` | A `logical` or a `Verbose` object.

### Value

Returns a `data.frame`.

### Reading quoted numerics

If a specific data column is specified as being numeric in argument `colClasses` and that column contains quoted values it is necessary to use argument `trimQuotes=TRUE`, otherwise `scan`() throws an exception similar to: `scan() expected 'a real', got '"1.0"'`.

### Author(s)

Henrik Bengtsson

### See Also

For more information see `TabularTextFile`.

[Package R.filesets version 2.11.0 Index]