rep_dim

The <code>rep_dim()</code> function
replicates array dimensions until the specified dimension sizes are reached,
and returns the array. 
 
The various broadcasting functions recycle array dimensions virtually,
meaning little to no additional memory is needed. 
The <code>rep_dim()</code> function,
however,
physically replicates the dimensions of an array
(and thus actually occupies additional memory space).

Implements efficient 'NumPy'-like broadcasted operations for atomic and recursive arrays.
In the context of operations involving 2 (or more) arrays,
“broadcasting” refers to efficiently recycling array dimensions,
without making copies.
Besides linking to 'Rcpp',
'broadcast' does not use any external libraries in any way;
'broadcast' was essentially made from scratch and can be installed out-of-the-box.
The implementations available in 'broadcast' include, but are not limited to, the following.
1) Broadcasted element-wise operations on any 2 arrays;
they support a large set of
relational, arithmetic, Boolean, string, and bit-wise operations.
2) A faster, more memory efficient, and broadcasted abind-like function,
for binding arrays along an arbitrary dimension.
3) Broadcasted ifelse-like and apply-like functions.
4) Casting functions,
that cast subset-groups of an array to a new dimension, cast nested lists to dimensional lists, and vice-versa.
5) A few linear algebra functions for statistics.
The functions in the 'broadcast' package strive to minimize computation time and memory usage
(which is not just better for efficient computing, but also for the environment).

Tony Wilkes

broadcast

Broadcasted Array Operations Like 'NumPy'

rep_dim function

<dl><dt>x</dt>
<dd>an atomic or recursive array or matrix.</dd>
<dt>tdim</dt>
<dd>an integer vector, giving the target dimension to reach.</dd></dl>

Arguments

The <code>rep_dim()</code> function
replicates array dimensions until the specified dimension sizes are reached,
and returns the array. 
 
The various broadcasting functions recycle array dimensions virtually,
meaning little to no additional memory is needed. 
The <code>rep_dim()</code> function,
however,
physically replicates the dimensions of an array
(and thus actually occupies additional memory space).

Replicate Array Dimensions — rep_dim

<dl>

<dt>x</dt>
<dd>an atomic or recursive array or matrix.</dd>


<dt>tdim</dt>
<dd>an integer vector, giving the target dimension to reach.</dd>

</dl>

rep_dim: Replicate Array Dimensions

Description

Usage

Value

Arguments

Examples