Returns a container of intervals where any intervals that meet or share support are combined into one interval. *To work properly, the input should be sorted*. See combineIntervalsL for a version that works only on lists.

>>> combineIntervals [iv 10 0, iv 5 2, iv 2 10, iv 2 13]
[(0, 12),(13, 15)]

Returns a list of intervals where any intervals that meet or share support are combined into one interval. *To work properly, the input list should be sorted*.

>>> combineIntervalsL [iv 10 0, iv 5 2, iv 2 10, iv 2 13]
[(0, 12),(13, 15)]

Maybe form an Interval a from Control.Foldl t => t (Interval a) spanning the range of all intervals in the list, i.e. whose begin is the minimum of begin across intervals in the list and whose end is the maximum of end.

>>> rangeInterval [beginerval 0 0, beginerval 0 (-1)]
Just (-1, 1)
>>> rangeInterval ([] :: [Interval Int])
Nothing
>>> rangeInterval (Just (beginerval 0 0))
Just (0, 1)

Returns a Maybe container of intervals consisting of the gaps between intervals in the input. *To work properly, the input should be sorted*. See gapsL for a version that always returns a list.

>>> gaps [iv 4 1, iv 4 8, iv 3 11]
Nothing

Returns a (possibly empty) list of intervals consisting of the gaps between intervals in the input container. *To work properly, the input should be sorted*. This version outputs a list. See gaps for a version that lifts the result to same input structure f.

Applies gaps to all the non-disjoint intervals in x that are *not* disjoint from i. Intervals that overlaps or are overlappedBy i are clipped to i, so that all the intervals are within i. If all of the input intervals are disjoint from the focal interval or if the input is empty, then Nothing is returned. When there are no gaps among the concurring intervals, then `Just mempty` (e.g. `Just []`) is returned.

>>> gapsWithin (iv 9 1) [iv 5 0, iv 2 7, iv 3 12]
Just [(5, 7),(9, 10)]

Folds over a list of Paired Intervals and in the case that the getPairData is equal between two sequential meeting intervals, these two intervals are combined into one. This function is "safe" in the sense that if the input is invalid and contains any sequential pairs of intervals with an IntervalRelation, other than Meets, then the function returns an empty list.

Convert an ordered sequence of PairedInterval b a. that may have any interval relation (before, starts, etc) into a sequence of sequentially meeting PairedInterval b a. That is, a sequence where one the end of one interval meets the beginning of the subsequent event. The getPairData of the input PairedIntervals are combined using the Monoid <> function, hence the pair data must be a Monoid instance.

Given a predicate combinator, a predicate, and list of intervals, returns the input unchanged if the predicate combinator is True. Otherwise, returns an empty list. See nothingIfAny and nothingIfNone for examples.

Returns the Nothing if *none* of the element of input satisfy the predicate condition.

For example, the following returns Nothing because none of the intervals in the input list starts (3, 5).

>>> nothingIfNone (starts (iv 2 3)) [iv 1 3, iv 1 5]
Nothing

In the following, (3, 5) starts (3, 6), so Just the input is returned.

>>> nothingIfNone (starts (iv 2 3)) [iv 3 3, iv 1 5]
Just [(3, 6),(5, 6)]

Returns Nothing if *any* of the element of input satisfy the predicate condition.

>>> nothingIfAny (startedBy (iv 2 3)) [iv 3 3, iv 1 5]
Just [(3, 6),(5, 6)]

>>> nothingIfAny (starts (iv 2 3)) [iv 3 3, iv 1 5]
Nothing

Returns Nothing if *all* of the element of input satisfy the predicate condition.

>>> nothingIfAll (starts (iv 2 3)) [iv 3 3, iv 4 3]
Nothing

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Filter Filterable containers of one Intervallic type based by comparing to a (potentially different) Intervallic type using the corresponding interval predicate function.

Creates a new Interval of a provided lookback duration ending at the begin of the input interval.

>>> lookback 4 (beginerval 10 (1 :: Int))
(-3, 1)

Creates a new Interval of a provided lookahead duration beginning at the end of the input interval.

>>> lookahead 4 (beginerval 1 (1 :: Int))
(2, 6)

Create a predicate function that checks whether within a provided spanning interval, are there (e.g. any, all) gaps of (e.g. <=,=, >) a specified duration among the input intervals?

Gets the durations of gaps (via 'IntervalAlgebra.(><)') between all pairs of the input.

Within a provided spanning interval, are there any gaps of at least the specified duration among the input intervals?

Within a provided spanning interval, are all gaps less than the specified duration among the input intervals?

>>> allGapsWithinLessThanDuration 30 (beginerval 100 (0::Int)) [beginerval 5 (-1), beginerval 99 10]
True

A generic form of relations which can output any Applicative and Monoid structure.

>>> (relations [iv 1 0,iv 1 1]) :: [IntervalRelation]
[Meets]

Returns a list of the IntervalRelation between each consecutive pair of intervals. This is just a specialized relations which returns a list.

>>> relationsL [iv 1 0, iv 1 1]
[Meets]

Forms a Just new interval from the intersection of two intervals, provided the intervals are not disjoint.

>>> intersect (iv 5 0) (iv 2 3)
Just (3, 5)

In the case that x y are not disjoint, clips y to the extent of x.

>>> clip (iv 5 0) (iv 3 3)
Just (3, 5)

>>> clip (iv 3 0) (iv 2 4)
Nothing

Returns the duration of each 'Intervallic i a' in the Functor f.

>>> durations [iv 9 1, iv 10 2, iv 1 5]
[9,10,1]