The Persistence Operator Term
# binary: Persist(
# formula,
# lm = ~1,
# subset = TRUE,
# weights = 1,
# contrasts = NULL,
# offset = 0,
# label = NULL
# )a one-sided ergm()-style formula with the terms to be evaluated
NetSeries() LHS only arguments to specify time-varying parameters. See N() term operator in the ergm.multi for details. lm formula may reference .Time for the network's time index, .TimeID for the its index in the network series (where the initial network is 1 and the first modelled network is 2), and .TimeDelta for the time elapsed between the network and the immediately previous network in the series.
This term accepts a model formula and produces the corresponding model for the post-dissolution/persistence network: effectively the network containing ties that persisted since the last time step.
This is the equivalent of the old-style dissolution model. So
a larger positive coefficient for Persist() operator means
less dissolution. It
produces the same results as the new Diss() operator, except the
signs of the coefficients are negated.
ergmTerm for index of model terms currently visible to the package.
ergm:::.formatTermKeywords("ergmTerm", "Persist", "subsection")