This repository contains the current development version of the
spatstat.sparse
package.
For the most recent official release of spatstat.sparse
,
see the CRAN page.
The spatstat.sparse
package
defines a class of sparse three-dimensional arrays and supports standard operations on them.
provides utility functions for matrix computations that are common in statistics, such as quadratic forms.
It supports
creation of sparse arrays from raw data (numeric, integer, logical, or complex values)
conversion to/from other data types
array indexing, extraction of entries, assignment of new values
arithmetic and logical operations
tensor operations (generalising matrix multiplication)
permutation of array dimensions
binding of several arrays into a single array
printing of sparse arrays.
linear algebra operations including calculation of quadratic forms, bilinear forms, fractional powers of a matrix.
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