Description Usage Arguments Details References
Computes confidence intervals for one or more parameters estimated in an admbsecr model object.
1 2 3 4 5 6 7 |
parm |
A character vector containing either parameter names,
or a subset of |
linked |
Logical, if |
method |
A character string specifying the method used to calculate the confidence intervals. See 'Details' below. |
qqplot |
Logical, if |
ask |
Logical, if |
object |
A fitted model from admbsecr. |
... |
Other parameters (for S3 generic compatibility). |
level |
the confidence level required. |
Options for the argument method
are as follows:
"default"
for intervals based on a normal approximation
using the calculated standard errors (for objects of class
admbsecr.boot
, these standard errors are calculated from the
bootstrap procedure); "default.bc"
is a bias-corrected
version of default
, whereby the estimated bias is subtracted
from each confidence limit; "basic"
for the so-called
"basic" bootstrap method; and "percentile"
for intervals
calculated using the bootstrap percentile method (the latter three
are only available for objects of class admbsecr.boot
; see
Davison & Hinkley, 1997, for details).
For method "default"
with objects of class
admbsecr.boot
, the appropriateness of the normal
approximation can be evaluated by setting qqnorm
to
TRUE
. If this indicates a poor fit, set linked
to
TRUE
and evaluate the QQ plot to see if this yields an
improvement (see Davison & Hinkley, 1997, pp. 194, for details).
Davison, A. C., and Hinkley, D. V. (1997) Bootstrap methods and their application. Cambridge: Cambridge University Press.
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