deferred-ops | R Documentation |
Some arithmetic, comparison, and logical operations are available as delayed operations on matter_arr
and sparse_arr
objects.
Currently the following delayed operations are supported:
‘Arith’: ‘+’, ‘-’, ‘*’, ‘/’, ‘^’, '
‘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.
A new matter
object with the registered deferred operation. Data in storage is not modified; only object metadata is changed.
Kylie A. Bemis
Arith
,
Compare
,
Logic
,
Ops
,
Math
x <- matter(1:100)
y <- 2 * x + 1
x[1:10]
y[1:10]
mean(x)
mean(y)
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