Combine Sparse Arrays
Combine a sequence of (sparse) arrays, matrices, or vectors into a single sparse array of the same or higher dimension.
abind_simple_sparse_array(..., MARGIN = 1L) extend_simple_sparse_array(x, MARGIN = 0L)
... |
R objects of (or coercible to) class |
MARGIN |
The dimension along which to bind the arrays. |
x |
An object of class |
abind_simple_sparse_array automatically extends the dimensions
of the elements of ‘...’ before it combines them along the
dimension specified in MARGIN. If a negative value is specified
first all elements are extended left of the target dimension.
extend_simple_sparse_array inserts one (or more) one-level
dimension(s) into x to the right of the position(s) specified in
MARGIN, or to the left if specified in negative terms. Note that
the target positions must all be in the range of the dimensions of x
(see Examples).
An object of class simple_sparse_array where the dimnames
are taken from the elements of ‘...’.
Christian Buchta
simple_sparse_array for sparse arrays.
## automatic abind_simple_sparse_array(1:3, array(4:6, c(1,3))) abind_simple_sparse_array(1:3, array(4:6, c(3,1)), MARGIN = 2L) ## manual abind_simple_sparse_array(1:3, 4:6) abind_simple_sparse_array(1:3, 4:6, MARGIN = -2L) ## by columns abind_simple_sparse_array(1:3, 4:6, MARGIN = -1L) ## by rows ## a <- as.simple_sparse_array(1:3) a extend_simple_sparse_array(a, c( 0L, 1L)) extend_simple_sparse_array(a, c(-1L,-2L)) ## the same extend_simple_sparse_array(a, c( 1L, 1L))
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