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admb_real:n3_re_catch:catch_sigma_levels:catch_sigma_levels [2010/11/03 17:22] lennartfradmb_real:n3_re_catch:catch_sigma_levels:catch_sigma_levels [2010/11/03 17:33] (current) lennartfr
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 ====== Testing different levels of sigma for catch --- no variables locked ====== ====== Testing different levels of sigma for catch --- no variables locked ======
  
-In this section we perform an experiment similar to [[admb_real:n3_re_catch:misfit:misfit_testing|the testing of misfit as a function of catch standard deviation]]. The main difference is that in this experiment all variable are free. We will use the same data set, namely this one.+In this section we perform an experiment similar to [[admb_real:n3_re_catch:misfit:misfit_testing|the testing of misfit as a function of catch standard deviation]]. The main difference is that in this experiment all variables are free. We will use the same data set, namely [[admb_real:n3_re_catch:locking_variables:locking_tests#data_set_used|this one.]]
  
 ===== Summary ===== ===== Summary =====
 +
 +As the catch sigma, sc, grows, the following trend is fairly evident:
 +
 +  * M grows, ultimately reaching its upper bound of 0.5 for sc = 0.2.
 +  * q becomes smaller
 +  * N0 becomes larger
 +  * The discrepancy between these estimates and the VPA estimates becomes larger
  
 ===== Experiments ===== ===== Experiments =====
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 ==== sc = 0.20 ==== ==== sc = 0.20 ====
 +:!: M reaches its upper bound, so the confidence intervals are not meaningful in this case.
 +
 ^ Num. cohorts ^ Trajectories ^ Estimates ^ ^ Num. cohorts ^ Trajectories ^ Estimates ^
 | 4 | {{:admb_real:n3_re_catch:catch_sigma_levels:true_s-cod_simple_re_catch_N3_vs_vpa_94_97sc020.gif?180|}} | <file txt cod.par>  | 4 | {{:admb_real:n3_re_catch:catch_sigma_levels:true_s-cod_simple_re_catch_N3_vs_vpa_94_97sc020.gif?180|}} | <file txt cod.par> 
admb_real/n3_re_catch/catch_sigma_levels/catch_sigma_levels.1288804954.txt.gz · Last modified: 2010/11/03 17:22 by lennartfr