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authorJohannes Ranke <jranke@uni-bremen.de>2022-11-14 20:03:42 +0100
committerJohannes Ranke <jranke@uni-bremen.de>2022-11-14 20:03:42 +0100
commit21ad91256dc29423bd905de5c298fd23862b1f3b (patch)
tree225e2f69ed75b96e5528bcf7b8f25eb3864b75da /man/saem.Rd
parent0db7df4bf632a013099b17d5e817a7dc7146c394 (diff)
Automatic starting parameters for saem.mmkin
For the case of mkin transformations. This gives faster convergence, and appears to avoid problems with numeric ODE solutions
Diffstat (limited to 'man/saem.Rd')
-rw-r--r--man/saem.Rd16
1 files changed, 15 insertions, 1 deletions
diff --git a/man/saem.Rd b/man/saem.Rd
index 3dc8001a..11463351 100644
--- a/man/saem.Rd
+++ b/man/saem.Rd
@@ -20,9 +20,11 @@ saem(object, ...)
conf.level = 0.6,
solution_type = "auto",
covariance.model = "auto",
+ omega.init = "auto",
covariates = NULL,
covariate_models = NULL,
no_random_effect = NULL,
+ error.init = c(3, 0.1),
nbiter.saemix = c(300, 100),
control = list(displayProgress = FALSE, print = FALSE, nbiter.saemix = nbiter.saemix,
save = FALSE, save.graphs = FALSE),
@@ -41,8 +43,10 @@ saemix_model(
degparms_start = numeric(),
covariance.model = "auto",
no_random_effect = NULL,
+ omega.init = "auto",
covariates = NULL,
covariate_models = NULL,
+ error.init = numeric(),
test_log_parms = FALSE,
conf.level = 0.6,
verbose = FALSE,
@@ -81,10 +85,18 @@ for parameter that are tested if requested by 'test_log_parms'.}
\item{solution_type}{Possibility to specify the solution type in case the
automatic choice is not desired}
-\item{covariance.model}{Will be passed to \code{\link[saemix:SaemixModel-class]{saemix::SaemixModel()}}. Per
+\item{covariance.model}{Will be passed to \code{\link[saemix:saemixModel]{saemix::saemixModel()}}. Per
default, uncorrelated random effects are specified for all degradation
parameters.}
+\item{omega.init}{Will be passed to \code{\link[saemix:saemixModel]{saemix::saemixModel()}}. If using
+mkin transformations and the default covariance model with optionally
+excluded random effects, the variances of the degradation parameters
+are estimated using \link{mean_degparms}, with testing of untransformed
+log parameters for significant difference from zero. If not using
+mkin transformations or a custom covariance model, the default
+initialisation of \link[saemix:saemixModel]{saemix::saemixModel} is used for omega.init.}
+
\item{covariates}{A data frame with covariate data for use in
'covariate_models', with dataset names as row names.}
@@ -96,6 +108,8 @@ in the 'covariates' data frame.}
which there should be no variability over the groups. Only used
if the covariance model is not explicitly specified.}
+\item{error.init}{Will be passed to \code{\link[saemix:saemixModel]{saemix::saemixModel()}}.}
+
\item{nbiter.saemix}{Convenience option to increase the number of
iterations}

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