Split

Split(list)

splits list into collections of consecutive identical elements.

Split(list, test)

splits list based on whether the function test yields ‘True’ on consecutive elements.

Examples

>> Split({x, x, x, y, x, y, y, z})
{{x,x,x},{y},{x},{y,y},{z}}

>> Split({x, x, x, y, x, y, y, z}, x)
{{x},{x},{x},{y},{x},{y},{y},{z}}

Split into increasing or decreasing runs of elements

>> Split({1, 5, 6, 3, 6, 1, 6, 3, 4, 5, 4}, Less)
{{1,5,6},{3,6},{1,6},{3,4,5},{4}}

>> Split({1, 5, 6, 3, 6, 1, 6, 3, 4, 5, 4}, Greater)
{{1},{5},{6,3},{6,1},{6,3},{4},{5,4}}

Split based on first element

>> Split({x -> a, x -> y, 2 -> a, z -> c, z -> a}, First(#1) === First(#2) &)
{{x->a,x->y},{2->a},{z->c,z->a}}

>> Split({})
{}

Implementation status

• ✅ - full supported

Github

• Implementation of Split