Covariance of parameter estimates in nonlinear mixed effects fit
10 views (last 30 days)
Show older comments
I'm using nlmefit, and am trying to test the hypotheses using linhyptest. For that I need the covariance of the parameter estimates. The documentation suggests that the "stats" output structure should have a field called "covb". My output structure does not contain this!
[beta,psi,stats,re_subj] = nlmefit( X , Y, [],
@(b,X)X*b', [0,0,0,0], 'REParam',[1] );
stats =
dfe: 4844
logl: -1.1235e+04
mse: 5.9078
rmse: 2.4274
errorparam: 2.4306
aic: 2.2482e+04
bic: 2.2488e+04
sebeta: [0.4017 0.0919 0.0426 0.0426]
How can I get the required matrix? (I was expecting a 4x4, with 'sebeta.^2' as diagonals maybe?)
0 Comments
Answers (0)
See Also
Categories
Find more on Transfer Function Models in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!