| Name : R-bimixt
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| Version : 1.0
| Vendor : obs://build_opensuse_org/devel:languages:R
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| Release : lp153.2.13
| Date : 2024-06-14 11:35:43
|
| Group : Development/Libraries/Other
| Source RPM : R-bimixt-1.0-lp153.2.13.src.rpm
|
| Size : 0.15 MB
| |
| Packager : (none)
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| Summary : Estimates Mixture Models for Case-Control Data
|
Description :
Estimates non-Gaussian mixture models of case-control data. The four
types of models supported are binormal, two component constrained, two
component unconstrained, and four component. The most general model is
the four component model, under which both cases and controls are
distributed according to a mixture of two unimodal distributions. In
the four component model, the two component distributions of the
control mixture may be distinct from the two components of the case
mixture distribution. In the two component unconstrained model, the
components of the control and case mixtures are the same; however the
mixture probabilities may differ for cases and controls. In the two
component constrained model, all controls are distributed according to
one of the two components while cases follow a mixture distribution of
the two components. In the binormal model, cases and controls are
distributed according to distinct unimodal distributions. These models
assume that Box-Cox transformed case and control data with a common
lambda parameter are distributed according to Gaussian mixture
distributions. Model parameters are estimated using the
expectation-maximization (EM) algorithm. Likelihood ratio test
comparison of nested models can be performed using the lr.test
function. AUC and PAUC values can be computed for the model-based and
empirical ROC curves using the auc and pauc functions, respectively.
The model-based and empirical ROC curves can be graphed using the
roc.plot function. Finally, the model-based density estimates can be
visualized by plotting a model object created with the bimixt.model
function.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Leap_15.3/x86_64 |
