The READ_SPR function reads a row-indexed sparse array. Row-indexed sparse arrays are created using the SPRSIN function and written to a file using the WRITE_SPR function.

This routine is written in the IDL language. Its source code can be found in the file read_spr.pro in the lib subdirectory of the IDL distribution.

Examples

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Suppose we have already saved a row-indexed sparse array to a file named sprs.as, as described in the documentation for the WRITE_SPR routine. To read the sparse array from the file and store it in a variable sprs, use the following command:

sprs = READ_SPR('sprs.as')

Syntax

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Result = READ_SPR(Filename)

Return Value

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Returns the row-indexed sparse array from the specified file.

Arguments

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Filename

A scalar string specifying the name of the file containing a row-indexed sparse array.

Version History

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Pre-4.0

Introduced

See Also

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FULSTR, LINBCG, SPRSAB, SPRSAX, SPRSIN, WRITE_SPR