Many revisited mortality trees don't have DIA recorded (at least in western states), which leads tpa() to do some dramatic under-counting when type="all" or "dead". I can understand the reasoning behind this choice, especially when estimating anything other than TPA. One solution would be to include these trees in TPA estimates, and use PREVDIA (with a disclaimer) when necessary.
Possibly not a problem many people will run into, but thought it worth pointing out!
Many revisited mortality trees don't have DIA recorded (at least in western states), which leads tpa() to do some dramatic under-counting when type="all" or "dead". I can understand the reasoning behind this choice, especially when estimating anything other than TPA. One solution would be to include these trees in TPA estimates, and use PREVDIA (with a disclaimer) when necessary.
Possibly not a problem many people will run into, but thought it worth pointing out!
Thanks, Daniel Perret