psABAB: psABAB

In remstats: Computes Statistics for Relational Event History Data

psABAB

Description

Specifies the statistic for a pshift AB-AB effect.

Usage

psABAB(consider_type = "ignore")

Arguments

consider_type

character. Controls how event types are handled: "ignore" (default): aggregate over all event types (one statistic); "separate": compute C type-specific statistics, where the type-c statistic for a dyad reflects past type-c events on that actor pair ; "interact": compute C^2 statistics capturing past-event-type x dyad-type interactions (only meaningful with extend_riskset_by_type=TRUE in remify object). Also accepts FALSE (-> "ignore") and TRUE (-> "separate") for backward compatibility.

Details

Refers to the tendency for the same dyads to keep interacting. For directed events, the next sender and receiver are equal to the previous sender and receiver. For undirected events, the next actor pair is equal to the current actor pair. For each timepoint t, the psABAB statistic is equal to one for the dyads that will create the participation shift if they would occur in the edgelist at time t and equal to zero for the dyads that will not create this participation shift. If consider_type is set to TRUE, the type of the two subsequent AB events have to be equal. If it is set to FALSE, the participation shift is set to one for every AB event, regardless of the event type. If multiple events in the edgelist occur at the same time point, the order of these events determines whether the p-shift is observed.

Value

List with all information required by 'remstats::remstats()' to compute the statistic.

See Also

psABBA, psABBY, psABXA, psABXB, psABXY or psABAY for other dyadic participation shifts.

Examples

reh_tie <- remify::remify(history, model = "tie", directed = FALSE)
effects <- ~ psABAB()
remstats(tie_effects = effects, reh = reh_tie)

remstats documentation built on July 15, 2026, 5:07 p.m.