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lonfarr(file, dimensions [, offset=offset,
/readonly, /swap])
Links a long (4-byte) array structure with the specified
dimensions to the specified file.
dimensions may be an array, or a list of up to ten
dimensions. No file checks are made. offset indicates the
length in bytes of a header after which the array data is to be found.
It defaults to zero. Keyword /readonly disallows writing into
the file through the file array. Keyword /swap indicates that
the data should be byte-swapped after reading (for input only).
See also: File Arrays, array, lonarr