series_transition_2018_2019_to_2020_2021 ~ Form(~edges + gwesp(0.25, 
    fixed = TRUE) + nodecov("evcent_lag_sqrt") + absdiff("evcent_lag_sqrt") + 
    nodecov("tech_size_lag_sqrt") + absdiff("tech_size_lag_sqrt") + 
    edgecov(proximity_mat_transition_2018_2019_to_2020_2021) + 
    edgecov(history_mat_transition_2018_2019_to_2020_2021)) + 
    Persist(~edges + gwesp(0.25, fixed = TRUE) + nodecov("evcent_lag_sqrt") + 
        absdiff("evcent_lag_sqrt") + nodecov("tech_size_lag_sqrt") + 
        absdiff("tech_size_lag_sqrt") + edgecov(proximity_mat_transition_2018_2019_to_2020_2021) + 
        edgecov(history_mat_transition_2018_2019_to_2020_2021))
