spell_comparisons: Functions to compare and search spell intervals

In networkDynamic: Dynamic Extensions for Network Objects

Functions to compare and search spell intervals

Description

spells.overlap checks if two spells overlap at all, spells.hit searches a spell matrix for an overlapping spell

Usage

spells.overlap(s1, s2)

spells.hit(needle, haystack)

search.spell(needle, haystack)

Arguments

s1	First spell for in the comparison, must be a two-element numeric vector in the form [onset,terminus]
s2	Second spell for in the comparison, must be a two-element numeric vector in the form [onset,terminus]
needle	The query spell used in the search, must be a two-element numeric vector in the form [onset,terminus]
haystack	The spell matrix to be searched by needle. Must be two column numeric matrix meeting the order specifications of a spell matrix. See activity.attribute

Details

Spell overlap is defined as true if one of the following conditions sets is met, otherwise false:

onset1 >= onset2 AND onset1 < terminus2

terminus1 > onset2 AND terminus1 <= terminus2

onset1 <= onset2 AND terminus1 >= terminus2

Value

spells.overlap returns a boolean indicating if the two spells overlap or not.

spells.hit returns the integer row index of the first (earliest) spell in haystack that overlaps with needle, or -1 if no overlaps are found

search.spell returns a vector containing the row indices of spells in haystack that overlap with needle, or numeric(0) if none found

Author(s)

[e-mail]

See Also

See Also activity.attribute

Examples

a <- c(1,3)
b <- c(2,5.5)
c <- c(-1,10)
d <- c(4,4)
spells.overlap(a,b)
spells.overlap(b,c)
spells.overlap(a,d)

spellmat <- rbind(c(0,1), c(1,2), c(2,3))
spells.hit(c(1,2),spellmat)

networkDynamic documentation built on May 29, 2024, 1:16 a.m.