

                                                                  previous

    FUNCTION
PREVIOUS ITEMS &optional (DEFAULT NIL) (AMOUNT 1)                [Function]

    Package
    series

    DESCRIPTION

The series returned by PREVIOUS is the same as the input series ITEMS
except that it is shifted to the right by the positive integer AMOUNT.  The
shifting is done by inserting AMOUNT copies of DEFAULT before ITEMS and
discarding AMOUNT elements from the end of ITEMS.
 
(PREVIOUS #Z(10 11 12) 0) => #Z(0 10 11)


     SEE ALSO
     about-series
     about-generators

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