Input file structure using both groups and covariates

[nperlut]

Hello,

I am running Pradel models on a data set that has plots sampled for 3 years and other sampled for 4 years. I got great help on using these as one data set - but I am concerned that my input file may have an incorrect structure when using both groups and covariates. I separate the data into 2 groups (3 year data and 4 year data) then include a suite of covariates. My input file looks like:

histority, freq, 3year (group), 4year (group), covar1, covar2......
0111 1 1 0 1 0 1 0 1
1011 1 0 1 0 1 1 1 0

It is unclear if MARK is reading this file sequentially. My hope is that after the history and frequency MARK references the next two columns as groups, then the covariates. Is this true?
The models run, though the deviances are extremely high. Any thoughts would be great.
Thanks.

noah

[ganghis]

MARK reads in group-specific frequencies, not a frequency and then group membership. So, try replacing the 3 columns 'frequency grp1 grp2'
with 2 columns 'grp1frequency grp2frequency'.

Cheers, Paul Conn

[egc]

MARK reads in group-specific frequencies, not a frequency and then group membership. So, try replacing the 3 columns 'frequency grp1 grp2'
with 2 columns 'grp1frequency grp2frequency'.

Cheers, Paul Conn

This is all discussed in Chapter 2 - there are several examples of just this sort of thing.

[egc]

Hello,

I am running Pradel models on a data set that has plots sampled for 3 years and other sampled for 4 years. I got great help on using these as one data set - but I am concerned that my input file may have an incorrect structure when using both groups and covariates. I separate the data into 2 groups (3 year data and 4 year data) then include a suite of covariates. My input file looks like:

histority, freq, 3year (group), 4year (group), covar1, covar2......
0111 1 1 0 1 0 1 0 1
1011 1 0 1 0 1 1 1 0

It is unclear if MARK is reading this file sequentially. My hope is that after the history and frequency MARK references the next two columns as groups, then the covariates. Is this true?
The models run, though the deviances are extremely high. Any thoughts would be great.
Thanks.

noah

Read Chapter 2 - I'm guessing you haven't. There are several examples of how MARK handles group frequencies scattered throughout the chapter.