maximum number of covariates?

[jlr]

Is there a maximum number of covariates that can be included in the MARK input file? I was hoping to run a multi-state analysis that includes a large covariate matrix (200 numeric fields). I was able to input the inp file with each as a separate covariate, but get an error when running the first model (without covariates): "ERROR-Not enough individual covariates specified on the encounter history. Exit code ' [][]¼-J30. I've checked the count and so wonder if this has to do with the vast number I am trying to include. I am working on how I might combine these into a single covariate (together these fields express relationships among individuals), but thought I would ask this question in the meantime.

[bam59]

I've got the same questions as jlr, above, so I am bumping this thread.

I've got a dynamic multistate occupancy model with 10 primary occasions and 10 secondary occasions, and included 2 visit-specific covariates (length 100 each) in the input file, along with a few site-level covariates (205 covariates, total). I'm getting the same error message ("ERROR-Not enough individual covariates specified on the encounter history").

I think I have formatted my input file correctly, and am wondering if I have maxed out some covariate limit in MARK.

Thanks for any help,
Brittany

[bam59]

I chatted with Gary White and there is no limit in terms of maximum number of covariates allowed in an .inp file, though some users may experience computer memory issues. Some users (like me) may also discover that they forgot to include a frequency column if they changed from a group formulation to an individual covariate.


Brittany