ireaddf

Create an iterator to read data frames from files.

A fresh take on iterators in R. Designed to be cross-compatible with the 'iterators' package, but using the 'nextOr' method will offer better performance as well as more compact code. With batteries included: includes a collection of iterator constructors and combinators ported and refined from the 'iterators', 'itertools', and 'itertools2' packages.

Peter Meilstrup

iterors

Fast, Compact Iterators and Tools

Folashade Daniel

Revolution Analytics 

Steve Weston

John A. Ramey

Kayla Schaefer

Hadley Wickham

ireaddf function

<dl><dt>filenames</dt>
<dd>Names of files contains column data.</dd>
<dt>n</dt>
<dd>Maximum number of elements to read from each column file.</dd>
<dt>start</dt>
<dd>Element to start reading from.</dd>
<dt>col.names</dt>
<dd>Names of the columns.</dd>
<dt>chunkSize</dt>
<dd>Number of rows to read at a time.</dd></dl>

Arguments

Create an iterator to read data frames from files — ireaddf

<dl>

<dt>filenames</dt>
<dd>Names of files contains column data.</dd>


<dt>n</dt>
<dd>Maximum number of elements to read from each column file.</dd>


<dt>start</dt>
<dd>Element to start reading from.</dd>


<dt>col.names</dt>
<dd>Names of the columns.</dd>


<dt>chunkSize</dt>
<dd>Number of rows to read at a time.</dd>

</dl>

ireaddf: Create an iterator to read data frames from files

Description

Usage

Value

Arguments

Details