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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
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')
-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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