get_phases: Get bullet phases

In heike/bulletxtrctr: Automatic Matching of Bullet Striae

Get bullet phases

Description

Note that the combination of land1 and land2 are a key to the land-to-land scores, i.e. if a bullet has six lands, each of the input vectors should have 36 entries. In the case that the lands are not factor variables, the order in which different lands are encountered in the vector is used to determine their order.

Usage

get_phases(land1, land2)

Arguments

land1	vector with land ids of bullet 1
land2	vector with land ids of bullet 2

Value

numeric vector of the phases (diagonal groupings). The number of the phase is determined by the comparison with land 1 on the first bullet, i.e. phase 1 is the diagonal, that contains the land-to-land comparison with bullet 2 land 1, phase 2 contains B1-L1 vs B2-L2, Phase 3 contains B1-L1 vs B2-L3, etc.

heike/bulletxtrctr documentation built on Feb. 15, 2025, 6:33 p.m.