base.pdclvar

descx

<p>Computes the variances of a ScaLAPCK-like distributed matrix.
Significantly faster than using <code>apply()</code>, even in compared
to the performance differences you would find comparing these
two approaches using just base R.</p>

An interface to and extensions for the 'PBLAS' and 'ScaLAPACK'
numerical libraries.  This enables R to utilize distributed linear algebra
for codes written in the 'SPMD' fashion.  This interface is deliberately
low-level and mimics the style of the native libraries it wraps.  For a much
higher level way of managing distributed matrices, see the 'pbdDMAT'
package.

Drew Schmidt

pbdBASE

Programming with Big Data -- Base Wrappers for Distributed
Matrices

Wei-Chen Chen

Sebastien Lamy de la Chapelle

George Ostrouchov

Pragneshkumar Patel

Ewan Higgs

base.pdclvar function

Column Variances — base.pdclvar

Column Variances

base.pdclvar: Column Variances

Description

Usage

Arguments