Description Slots Methods See Also
Class of object returned by the spring
function.
coef.direct
List of pxq Matrices (with class
"dgCMatrix"
) of estimated direct effects in the model with
respect to the original input. The number of element in the list
corresponds the length of lambda1
.
coef.regres
List of pxq Matrices (with class
"dgCMatrix"
) of estimated regression coefficients (both
direct and indirect effects) in the model with respect to the
original input. The number of element in the list corresponds the
length of lambda1
.
covariance
List of qxq matrices of estimated
covariance between the output. The number of element in the list
corresponds the length of lambda1
.
intercept
List of qx1 vectors of estimated intercept
terms. The number of element in the list corresponds the length of
lambda1
.
lambda1
Vector (class "numeric"
) of
l1 norm penalty levels for which the model has
eventually been fitted.
lambda2
Scalar for the level of (structuring) l2 norm penalty applied.
df
Estimated degree of freedoms for the successive
lambda1
.
residuals
List of Matrices of residuals. Each entry
of the list corresponds to a value of lambda1
.
r.squared
:Vector (class "numeric"
) given the
coefficient of determination as a function of lambda1.
normx
Vector (class "numeric"
) containing the
square root of the sum of squares of each column of the design
matrix.
monitoring
List (class "list"
) which
contains evolution of the loglikelihood and of the objective
function for each lambda1 and each iteration of the algorithm.
fitted
List of Matrices of fitted values. Each
entry of the list corresponds to a value of lambda1
.
This class comes with the usual
predict(object, newx, ...)
, fitted(object, ...)
,
residuals(object, ...)
, print(object, ...)
,
show(object)
and deviance(object, ...)
generic
(undocumented) methods.
The two methods loglik(object)
and objective(object)
are also defined to recover the log-likelihood and objective
functions along the fit. They can be applied on a spring object or
on a list of spring object. The corresponding output is an object
with class criterion
. See the corrdesponding documentation
for defintiion and methods.
The method spr.model(object, lambda1, lambda2=NULL))
applies on a spring object or a list of spring objects to extract
an single object with class model
. See the corresponding
documentation for definition and methods.
See also spring
,
criterion
, model
.
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