marray-class

S4 class for manipulating memory-mapped files as arrays

Manipulate data through memory-mapped files, as vectors, matrices or arrays.
Basic arithmetic functions are implemented, but currently no matrix arithmetic.
Can write and read descriptor files for compatibility with the 'bigmemory' package.

Herv<c3><a9> Perdry

houba

Manipulation of (Large) Memory-Mapped Objects (Vectors, Matrices
and Arrays)

Hervé Perdry

Juliette Meyniel

marray-class function

<dl>
<dt><code>ptr</code></dt>
<dd><code>externalptr</code> to an instance of the C++ <code>MMatrix</code> class</dd></dl>
<dt><code>file</code></dt>
<dd><code>character</code> with the path (absolute) of the file used to store the marray.</dd>
<dt><code>dim</code></dt>
<dd>An integer vector giving the dimensions of the marray.</dd>
<dt><code>datatype</code></dt>
<dd><code>character</code> giving the C++ underlying datatype.</dd>
<dt><code>readonly</code></dt>
<dd><code>logical</code> Indicates if the array if read-only.</dd>

Slots

Objects can be created by calling marray.

Objects from the Class

Class "marray" — marray-class

<dl>
<dt><code>ptr</code></dt>
<dd><code>externalptr</code> to an instance of the C++ <code>MMatrix</code> class</dd>


<dt><code>file</code></dt>
<dd><code>character</code> with the path (absolute) of the file used to store the marray.</dd>


<dt><code>dim</code></dt>
<dd>An integer vector giving the dimensions of the marray.</dd>


<dt><code>datatype</code></dt>
<dd><code>character</code> giving the C++ underlying datatype.</dd>


<dt><code>readonly</code></dt>
<dd><code>logical</code> Indicates if the array if read-only.</dd>


</dl>

Objects can be created by calling marray.

marray-class: Class `"marray"`

Description

Arguments

Slots

Objects from the Class

See Also