
        CHANGES IN spatstat.sparse VERSION 2.1-0

OVERVIEW

    o Join two sparse arrays.
    
    o Minor improvements and bug fixes.

NEW FUNCTIONS

    o bind.sparse3Darray
    Join two sparse three-dimensional arrays along a specified dimension
    (analogously to 'rbind', 'cbind' or 'abind') to make another
    sparse three-dimensional array.

SIGNIFICANT USER-VISIBLE CHANGES

    o quadform
    Argument 'v=NULL' is now accepted, and interpreted as the identity matrix.

    o bilinearform
    Argument 'v=NULL' is now accepted, and interpreted as the identity matrix.

BUG FIXES

    o quadform
    Crashed if 'v' was missing.
    Fixed.

        CHANGES IN spatstat.sparse VERSION 2.0-0

OVERVIEW

    o Package adjusted to conform to the spatstat family.
    
    o New function 'gridadjacencymatrix'.

NEW FUNCTIONS

    o gridadjacencymatrix
    Given the dimensions of a rectangular grid of points,
    create the adjacency matrix for the corresponding neighbourhood
    graph, whose vertices are the grid points, and whose edges are the
    joins between neighbouring grid points. The result is a sparse matrix.

        CHANGES IN spatstat.sparse VERSION 1.3-1

OVERVIEW

    o Internal adjustments.

        CHANGES IN spatstat.sparse VERSION 1.3-0

OVERVIEW

    o Some code has been transferred to spatstat.utils.

SIGNIFICANT USER-VISIBLE CHANGES

    o RelevantNA, RelevantZero, RelevantEmpty, grokIndexVector
    These functions have been moved to the package 'spatstat.utils'.
    
        CHANGES IN spatstat.sparse VERSION 1.2-1

OVERVIEW

    o Internal bug fix.


        CHANGES IN spatstat.sparse VERSION 1.2-0

OVERVIEW

    o Efficiency improvement

SIGNIFICANT USER-VISIBLE CHANGES

    o spatstat.sparse
    Code should run faster; we have reduced the overheads in executing C code.

        CHANGES IN spatstat.sparse VERSION 1.1-1

OVERVIEW

    o Internal code improvements.


        CHANGES IN spatstat.sparse VERSION 1.1-0

OVERVIEW

    o Internal code improvements.


        CHANGES IN spatstat.sparse VERSION 1.0-9

OVERVIEW

    o Internal code improvements.


        CHANGES IN spatstat.sparse VERSION 1.0-8

OVERVIEW

    o Internal code improvements.

BUG FIXES

    o sumouter
    Crashed if 'w' contained NA values.
    Fixed.

        CHANGES IN spatstat.sparse VERSION 1.0-7

OVERVIEW

    o Internal code tweaks.


        CHANGES IN spatstat.sparse VERSION 1.0-6

OVERVIEW

    o More documentation.

SIGNIFICANT USER-VISIBLE CHANGES

    o marginSumsSparse
    This function is now documented.

        CHANGES IN spatstat.sparse VERSION 1.0-5

OVERVIEW

    o More support for complex values


SIGNIFICANT USER-VISIBLE CHANGES

    o sumouter, quadform, bilinearform
    These functions now handle complex-valued matrices and vectors.

    o marginSumsSparse
    This function now handles complex-valued sparse arrays.
    
        CHANGES IN spatstat.sparse VERSION 1.0-4

OVERVIEW

    o spatstat.sparse now 'requires' the Matrix package.

SIGNIFICANT USER-VISIBLE CHANGES

    o spatstat.sparse package
    spatstat.sparse now 'requires' the Matrix package, so that
    Matrix is loaded when spatstat.sparse is loaded.

        CHANGES IN spatstat.sparse VERSION 1.0-3

OVERVIEW

    o More documentation.

SIGNIFICANT USER-VISIBLE CHANGES

    o "[.sparse3Darray"
    The subset extraction operator is now documented.

    o "[<-.sparse3Darray"
    The subset assignment operator is now documented.

    o as.array.sparse3Darray
    This method is now documented.

    o anyNA.sparse3Darray
    This method is now documented.

    o dim.sparse3Darray, "dim<-.sparse3Darray"
    These methods are now documented.

    o dimnames.sparse3Darray, "dimnames<-.sparse3Darray"
    These methods are now documented.
    
    o sumouter
    A mathematical statement in the help file has been corrected.
    
        CHANGES IN spatstat.sparse VERSION 1.0-2

OVERVIEW

    o More documentation


SIGNIFICANT USER-VISIBLE CHANGES

    o sparse3Darray
    This function is now documented.
    
    o aperm.sparse3Darray
    This function is now documented.
    
    o as.sparse3Darray
    This function is now documented.
    
    o tensorSparse
    This function is now documented.
    
    o Math.sparse3Darray, Ops.sparse3Darray, Complex.sparse3Darray,
    Summary.sparse3Darray
    The methods for the group generics are now documented.


        CHANGES IN spatstat.sparse VERSION 1.0-1

OVERVIEW

    o Corrections to the internal structure.

    o Bug fixes.

    o More functions are documented

SIGNIFICANT USER-VISIBLE CHANGES

    o sumsymouter
    New argument 'distinct'.

BUG FIXES

    o sumsymouter
    Results were incorrect for sparse arrays in some cases:
    some contributions to the sum were omitted.
    Fixed.

        CHANGES IN spatstat.sparse VERSION 1.0-0

OVERVIEW

    o This new package has been created from
    code removed from the spatstat package.
    


