sparse-arithmatic {sparsevctrs} | R Documentation |
Vector arithmatic with sparse vectors
Description
Do arithmatic operations on sparse vectors while trying to void destroying the sparsity.
Usage
sparse_multiplication(x, y)
Arguments
x |
A numeric vector. |
y |
A numeric vector. |
Details
Note that this function works with both sparse and dense vectors for both x
and y
, returning a sparse or dense vector according to the input.
For sparse_multiplication()
the class of the resulting vector depends on
the classes of x
and y
. If both x
and y
are integer vectors then an
integer vector is returned, otherwise a double vector is returned.
sparse_multiplication()
will return a non-sparse vector if both x
and y
is non-sparse. Otherwise a sparse vector is returned.
sparse_multiplication()
will destroy sparsity of sparse vectors with non-0
default
values.
Value
A sparse vector of same type.
Examples
x_sparse <- sparse_double(c(pi, 5, 0.1), c(2, 5, 10), 10)
sparse_multiplication(x_sparse, x_sparse)
[Package sparsevctrs version 0.3.4 Index]