The WRITE_SPR procedure writes a row-indexed sparse array structure to a specified file. Row-indexed sparse arrays are created using the SPRSIN function.

Examples

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; Create an array:

A = [[3.,0., 1., 0., 0.],$

     [0.,4., 0., 0., 0.],$

     [0.,7., 5., 9., 0.],$

     [0.,0., 0., 0., 2.],$

     [0.,0., 0., 6., 5.]]

; Convert it to sparse storage format:

A = SPRSIN(A)

; Store it in the file sprs.as:

WRITE_SPR, A, 'sprs.as'

Syntax

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WRITE_SPR, AS, Filename

Arguments

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AS

A row-indexed sparse array created by SPRSIN.

Filename

The name of the file that will contain AS.

Keywords

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None.

Version History

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Pre-4.0

Introduced

See Also

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FULSTR, LINBCG, SPRSAB, SPRSAX, SPRSIN, READ_SPR