Transients and time dependente models

Forum for discussion of general questions related to study design and/or analysis of existing data - software neutral.

Transients and time dependente models

Postby franca_lf » Sat May 12, 2012 9:56 am

Our analysis is CJS type with 28 time intervals. Can I make a time-dependent model with transients? I'd like use the following Index Matrix, Is this correct?

1 2 3 4 5 6 (...)
1 3 4 5 6 (...)
1 4 5 6 (...)
1 5 6 (...)
1 6 (...)
1 (...)

And Can I use the following Design Matrix:

1 1 0 0 0 0 Phi1(transient)
1 0 1 0 0 0 Phi2(t1)
1 0 0 1 0 0 Phi3(t2)
1 0 0 0 1 0 Phi4(t3)
1 0 0 0 0 1 Phi5(t4)
(...)

And Can I group some time interval to build biological ‘significant’ models like Phi(reprodution + remainder) or Phi (dry season + wet season)? See the following Design Matrix:

1 1 0 Phi1(transient)
1 0 1 Phi2(wet)
1 0 1 Phi3(wet)
1 0 0 Phi4(dry)
1 0 0 Phi5(dry)
(...)

Thank's
franca_lf
 
Posts: 4
Joined: Fri May 11, 2012 4:40 pm

Re: Transients and time dependente models

Postby cooch » Sat May 12, 2012 2:15 pm

franca_lf wrote:Our analysis is CJS type with 28 time intervals. Can I make a time-dependent model with transients? I'd like use the following Index Matrix, Is this correct?

1 2 3 4 5 6 (...)
1 3 4 5 6 (...)
1 4 5 6 (...)
1 5 6 (...)
1 6 (...)
1 (...)

And Can I use the following Design Matrix:

1 1 0 0 0 0 Phi1(transient)
1 0 1 0 0 0 Phi2(t1)
1 0 0 1 0 0 Phi3(t2)
1 0 0 0 1 0 Phi4(t3)
1 0 0 0 0 1 Phi5(t4)
(...)

And Can I group some time interval to build biological ‘significant’ models like Phi(reprodution + remainder) or Phi (dry season + wet season)? See the following Design Matrix:

1 1 0 Phi1(transient)
1 0 1 Phi2(wet)
1 0 1 Phi3(wet)
1 0 0 Phi4(dry)
1 0 0 Phi5(dry)
(...)

Thank's


If you're using MARK (and I'm guessing you are), have a read through chapter 7, paying particular attention to TSM models, introduces in section 7.4.
cooch
 
Posts: 1652
Joined: Thu May 15, 2003 4:11 pm
Location: Cornell University


Return to analysis & design questions

Who is online

Users browsing this forum: No registered users and 1 guest

cron