This class of objects is returned by the coxph_mpl
class of functions
to represent a proportional hazards model fitted by maximum penalised likelihood.
Objects of this class have methods for the functions print
,
summary
, plot
, residuals
and predict
.
All components described under Arguments must be included in a legitimate
coxph_mpl
object.
a list of length 2 containg the parameter estimates of each model part.
The first list, named 'Beta'
, contains the vector of regression parameter
estimates of length \(p\). The second list, named 'Theta'
, contains the
vector of the baseline hazard parameter estimates of length \(m\).
a list of length 2 containg the parameter standard errors of each model part.
The first list, named 'Beta'
, is a (\(p\) x \(5\)) matrix indicating
the standard errors of each regression parameter according to 5 inference methods.
See Details in coxph_mpl
. The second list, named 'Theta'
,
is a (\(m\) x \(5\)) matrix indicating the standard errors of each baseline
hazard parameter according to 5 inference methods. See Details in
coxph_mpl
.
a list of length 5 containg the (\(p+m\) x \(p+m\)) covariance matrix according to
5 inference methods. See Details in coxph_mpl
.
a vector of length 2. The first element is the penalised log-likelihood with the final values of the coefficients. (The second element is a correction factor for the baseline hazard parameters due to the use of a centered X matrix in the estimation process.)
a vector of length 3 indicating the number of iterations used to estimate the
smoothing parameter (first value, equal to 1
when the user specified a
chosen value), the Beta and Theta parameters during the entire process (second
value), and Beta and Theta parameters during the last smoothing parameter iteration
(third value).
list of length 3 to 4 containg parameters of the chosen basis: 'm'
, the number
of used bases; 'Alpha'
, the knot sequence of length \(m+1\) for the uniform
basis, and of length \(m\) otherwise; 'Delta'
, the value of the integral of
each base over the data support (which equals 1 when basis != 'uniform'
);
'Sigma'
, only available for the Gaussian basis, corresponds to the standard
deviation of each truncated Gaussian base.
Object of class coxph_mpl.control
specifying the basis, smoothing parameter
value and other options. See coxph_mpl.control
.
a list of length 5 with following elements: 'n'
, the sample size; 'n.events'
,
the number of events; 'n.ties'
, the number of duplicated observations; 'p'
,
the number of regression parameters; and 'm'
, the number of baseline hazard
parameters.
number of iterations used.
the matched call.
a list of length 3 with following elements: 'time'
, the outcome vector with
an added noise applied to duplicated observation if ties == "epsilon"
in coxph_mpl.control
; 'observed'
, a logical vector indicating
if outcomes are fully observed or censored; 'X'
, the X matrix corresponding
to the model formula indicated in coxph_mpl
.
coxph_mpl
, summary.coxph_mpl
, coef.coxph_mpl
,
plot.coxph_mpl
,residuals.coxph_mpl
and predict.coxph_mpl
.