PRESENCE unable to differentiate data
Posted: Fri Aug 02, 2019 12:53 pm
I am currently working on modeling for occupancy rates of semi-aquatic mammals in treated vs. nontreated sites. For this, I separated the treatment data into two groups, treated and control. For the treated data I put all treated sites as 1 and all control as 0 (vice versa for control groups).
Example
Site Treated Control
1 1 0
2 0 1
3 0 1
The problem is, it appears that PRESENCE is unable to understand the difference between what is treated and what is control. When I ran the models it gave me an AIC of 272.83 for both of them, with the exact same output. I was told to try combining the two together, leaving treated as 1 and control as 0 as such.
Site Management
1 1
2 0
3 0
But it gives me the exact same AIC and does not show a difference in the output. Does anyone know where I made a mistake? Sorry if this has already been answered.
Example
Site Treated Control
1 1 0
2 0 1
3 0 1
The problem is, it appears that PRESENCE is unable to understand the difference between what is treated and what is control. When I ran the models it gave me an AIC of 272.83 for both of them, with the exact same output. I was told to try combining the two together, leaving treated as 1 and control as 0 as such.
Site Management
1 1
2 0
3 0
But it gives me the exact same AIC and does not show a difference in the output. Does anyone know where I made a mistake? Sorry if this has already been answered.