hasklepias-0.7.1: Define features from events

Copyright	(c) NoviSci Inc 2020
License	BSD3
Maintainer	bsaul@novisci.com
Safe Haskell	Safe
Language	Haskell2010

Hasklepias.Functions

Contents

Container predicates
Finding occurrences of concepts
Reshaping containers
Create filters

Description

Provides functions used in defining Features.

Synopsis

isNotEmpty :: [a] -> Bool
atleastNofX :: Int -> [Text] -> Events a -> Bool
twoXOrOneY :: [Text] -> [Text] -> Events a -> Bool
nthConceptOccurrence :: (Events a -> Maybe (Event a)) -> [Text] -> Events a -> Maybe (Event a)
firstConceptOccurrence :: [Text] -> Events a -> Maybe (Event a)
allPairs :: [a] -> [b] -> [(a, b)]
splitByConcepts :: [Text] -> [Text] -> Events a -> (Events a, Events a)
makeConceptsFilter :: [Text] -> Events a -> Events a
makePairedFilter :: Ord a => ComparativePredicateOf2 (i0 a) (PairedInterval b a) -> i0 a -> (b -> Bool) -> [PairedInterval b a] -> [PairedInterval b a]

Container predicates

isNotEmpty :: [a] -> Bool Source #

Is the input list empty?

atleastNofX Source #

Arguments

:: Int	n
-> [Text]	x
-> Events a
-> Bool

Does Events have at least n events with any of the Concept in x.

twoXOrOneY :: [Text] -> [Text] -> Events a -> Bool Source #

TODO

Finding occurrences of concepts

nthConceptOccurrence Source #

Arguments

:: (Events a -> Maybe (Event a))	function used to select a single event
-> [Text]
-> Events a
-> Maybe (Event a)

Filter Events to a single Maybe Event, based on a provided function, with the provided concepts. For example, see firstConceptOccurrence and lastConceptOccurrence.

firstConceptOccurrence :: [Text] -> Events a -> Maybe (Event a) Source #

Finds the *first* occurrence of an Event with at least one of the concepts. Assumes the input Events list is appropriately sorted.

Reshaping containers

allPairs :: [a] -> [b] -> [(a, b)] Source #

Generate all pair-wise combinations from two lists.

splitByConcepts :: [Text] -> [Text] -> Events a -> (Events a, Events a) Source #

Split an Events a into a pair of Events a. The first element contains events have any of the concepts in the first argument, similarly for the second element.

Create filters

makeConceptsFilter Source #

Arguments

:: [Text]	the list of concepts by which to filter
-> Events a
-> Events a

Filter Events to those that have any of the provided concepts.

makePairedFilter :: Ord a => ComparativePredicateOf2 (i0 a) (PairedInterval b a) -> i0 a -> (b -> Bool) -> [PairedInterval b a] -> [PairedInterval b a] Source #