<groups> ( seq n -- groups )
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Vocabulary
grouping

Inputs

seq	a sequence
n	a non-negative integer

Outputs

groups

a groups

Word description
Outputs a virtual sequence whose elements are slices of disjoint subsequences of n elements from the underlying sequence.

Examples

USING: arrays kernel prettyprint sequences grouping ; 9 <iota> >array 3 <groups> dup [ reverse! drop ] each concat >array .
{ 2 1 0 5 4 3 8 7 6 }

USING: kernel prettyprint sequences grouping ; { 1 2 3 4 5 6 } 3 <groups> second .
T{ slice { from 3 } { to 6 } { seq { 1 2 3 4 5 6 } } }

See also
<clumps>, <circular-clumps>

Definition

USING: grouping.private ;

IN: grouping

: <groups> ( seq n -- groups ) groups new-groups ; inline