cumul is generic. For suitable model objects, it repeatedly fits the model, adding one observation at a time to the model.cumul(x, ...)"rma.uni", "rma.mh", or "rma.peto"."rma.uni", "rma.mh", and "rma.peto" with the cumul function. Accordingly, the corresponding methods are called cumul.rma.uni, cumul.rma.mh, and cumul.rma.peto. See the documentation for those functions for more details.cumul.rma.uni, cumul.rma.mh, cumul.rma.peto