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Showing content from https://cran.r-project.org/web/packages/rms/../rmsb/../RcppParallel/../lnmixsurv/readme/README.html below:

README

The lnmixsurv package provides an easy interface to the Bayesian lognormal mixture model proposed by Lobo, Fonseca and Alves, 2023.

An usual formula-type model is implemented in survival_ln_mixture, with the usual suvival::Surv() interface. The model tries to follow the conventions for R modeling packages, and uses the hardhat structure.

The underlying algorithm implementation is a Gibbs sampler which takes initial values from a small run of the EM-Algorithm, with initial values selection based on the log-likelihood. Besides the Bayesian approach, the Expectation-Maximization approach (which focus on maximizing the likelihood) for censored data is also available. The methods are implemented in C++ using RcppArmadillo for the linear algebra operations, RcppGSL for the random number generation and seed control and RcppParallel (since version 3.0.0) for parallelization.

The only dependency is on GSL, so, make sure you have GSL installed before proceeding Below, there are some basic guides on how to install these for each operational system other than Windows (Windows users are probably fine and ready to go).

Run brew install gsl at the console/terminal should be enough for installing GSL.

The installation of GSL on Linux is distro-specific. For the main distros out-there:

• Arch: sudo pacman -S gsl
• CentOS/RHEL: sudo yum install gsl-devel or sudo dnf install gsl-devel (make sure the EPEL – Extra Packages for Enterprise Linux – repository is enabled)
• Debian/Ubuntu: sudo apt-get install libgsl-dev
• Fedora: sudo dnf install gsl-devel
• Gentoo: sudo emerge sci-libs/gsl
• openSUSE: sudo zypper install gsl-devel

You can install the latest development version of lnmixsurv from GitHub:

# install.packages("devtools")
devtools::install_github("vivianalobo/lnmixsurv")

Alternatively, to install the latest development version of lnmixsurv, you can use the following code:

# install.packages("devtools")
devtools::install_github("vivianalobo/lnmixsurv", "devel")

An extension to the models defined by parsnip and censored is also provided, adding the survival_ln_mixture engine to the parsnip::survival_reg() model.

The following models, engines, and prediction type are available/extended through persistencia:

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