deferred-ops: Deferred Operations on "matter" Objects

In kuwisdelu/matter: Scientific computing for out-of-memory signals and images

Deferred Operations on “matter” Objects

Description

Some arithmetic, comparison, and logical operations are available as delayed operations on matter_arr and sparse_arr objects.

Details

Currently the following delayed operations are supported:

‘Arith’: ‘+’, ‘-’, ‘*’, ‘/’, ‘^’, '

‘Compare’: ‘==’, ‘>’, ‘<’, ‘!=’, ‘<=’, ‘>=’

‘Logic’: ‘&’, ‘|’

‘Ops’: ‘Arith’, ‘Compare’, ‘Logic’

‘Math’: ‘exp’, ‘log’, ‘log2’, ‘log10’

Arithmetic operations are applied in C++ layer immediately after the elements are read from virtual memory. This means that operations that are implemented in C and/or C++ for efficiency (such as summary statistics) will also reflect the execution of the deferred arithmetic operations.

Value

A new matter object with the registered deferred operation. Data in storage is not modified; only object metadata is changed.

Author(s)

Kylie A. Bemis

See Also

Arith, Compare, Logic, Ops, Math

Examples

x <- matter(1:100)
y <- 2 * x + 1

x[1:10]
y[1:10]

mean(x)
mean(y)

kuwisdelu/matter documentation built on May 1, 2024, 5:17 a.m.