Sparse vector type checkers

Helper functions to determine whether an vector is a sparse vector or not.

Usage

is_sparse_vector(x)

is_sparse_numeric(x)

is_sparse_double(x)

is_sparse_integer(x)

is_sparse_character(x)

is_sparse_logical(x)

Arguments

x

value to be checked.

Details

is_sparse_vector() is a general function that detects any type of sparse vector created with this package. is_sparse_double(), is_sparse_integer(), is_sparse_character(), and is_sparse_logical() are more specific functions that only detects the type. is_sparse_numeric() matches both sparse integers and doubles.

Examples

x_sparse <- sparse_double(c(pi, 5, 0.1), c(2, 5, 10), 10)
x_dense <- c(0, pi, 0, 0, 0.5, 0, 0, 0, 0, 0.1)

is_sparse_vector(x_sparse)
#> [1] TRUE
is_sparse_vector(x_dense)
#> [1] FALSE

is_sparse_double(x_sparse)
#> [1] TRUE
is_sparse_double(x_dense)
#> [1] FALSE

is_sparse_character(x_sparse)
#> [1] FALSE
is_sparse_character(x_dense)
#> [1] FALSE

# Forced materialization
is_sparse_vector(x_sparse[])
#> [1] FALSE