| Name : R-bsitar
| |
| Version : 0.2.1
| Vendor : obs://build_opensuse_org/devel:languages:R
|
| Release : lp153.1.1
| Date : 2024-09-18 12:44:44
|
| Group : Development/Libraries/Other
| Source RPM : R-bsitar-0.2.1-lp153.1.1.src.rpm
|
| Size : 4.35 MB
| |
| Packager : (none)
| |
| Summary : Bayesian Super Imposition by Translation and Rotation Growth Curve Analysis
|
Description :
The Super Imposition by Translation and Rotation (SITAR) model is a
shape-invariant nonlinear mixed effect model that fits a natural cubic
spline mean curve to the growth data, and aligns individual-specific
growth curves to the underlying mean curve via a set of random effects
(see Cole, 2010 < doi:10.1093/ije/dyq115> for details). The non-Bayesian
version of the SITAR model can be fit by using an already available R
package \'sitar\'. While \'sitar\' package allows modelling of a single
outcome only, the \'bsitar\' package offers a great flexibility in
fitting models of varying complexities that include joint modelling of
multiple outcomes such as height and weight (multivariate model). Also,
the \'bsitar\' package allows simultaneous analysis of a single outcome
separately for sub groups defined by a factor variable such as gender.
This is achieved by fitting separate models for each sub group (such as
males and females for gender variable). An advantage of such approach
is that posterior draws for each sub group are part of a single model
object that makes it possible to compare coefficients across groups and
test hypotheses. As \'bsitar\' package is a front-end to the R package
\'brms\', it offers an excellent support for post-processing of posterior
draws via various functions that are directly available from the \'brms\'
package. In addition, the \'bsitar\' package include various customized
functions that allow estimation and visualization growth curves such as
distance (increase in size with age) and velocity (change in growth
rate as a function of age).
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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 |
