Compute the proportion of "successful" introductions.
psi(input_sim = NULL, eval_date = NULL)matrix. dynamAedes.m compressed output matrix (compressed=TRUE).
positive integer. define the day(s) to calculate the proportion of successful introductions which should match the column number of the temperature matrix used to inform the model.
psi returns the proportion of model iterations that resulted in a viable mosquito population (defined as: iterations with at least one individual alive in any life stage) at a given date.