I have downloaded and am now using the most recent version of PRESENCE (6.9); prior to this I was using a much earlier version (2.1). It used to be that when I ran a predefined model such as 1-group, Constant P, I would get output that included the following:
Detection probabilities
(p):
grp srvy p se(p)
--- ---- --------- -----------
1 1 0.500000 ( 0.028194)
With the latest version I do not get this detection probability; instead I always get output for a custom model, even though I have made sure to select the Pre-defined model in the dialog box.
I have gone back and used input data from previous work and still get the custom model output. Does anyone have an idea as to why this is happening? Thanks!