current_line

current_line,laf-method

Methods for fast access to large ASCII files.  Currently the
following file formats are supported: comma separated format (CSV) and fixed
width format. It is assumed that the files are too large to fit into memory,
although the package can also be used to efficiently access files that do
fit into memory. Methods are provided to access and process files blockwise.
Furthermore, an opened file can be accessed as one would an ordinary
data.frame. The LaF vignette gives an overview of the functionality
provided.

Jan der Laan

Fast Access to Large ASCII Files

Jan van der Laan

current_line function

<dl><dt>x</dt>
<dd>an object the supports the <code>current_line</code> method, such as an
 <code>laf</code> object.
Returns the next line that will be read by <code>next_block</code>. The
current line can be set by the method <code>goto</code>.</dd></dl>

Arguments

Get the current line in the file — current_line

<dl>

<dt>x</dt>
<dd>an object the supports the <code>current_line</code> method, such as an
 <code>laf</code> object.
Returns the next line that will be read by <code>next_block</code>. The
current line can be set by the method <code>goto</code>.</dd>

</dl>

current_line: Get the current line in the file

Description

Usage

Arguments