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SimuRg

Overview

SimuRg provides a comprehensive workflow for non-linear mixed-effects model development in pharmacometrics. The package provides the entire modeling pipeline: from model calibration with Monolix fitter(2023) and output processing to goodness-of-fit visualization, simulation, and sensitivity analysis. To use Monolix, it should be installed.

Key features: - Model calibration via the Monolix fitter - Automated output conversion into a generalized fit output - Diagnostic visualization for model assessment - Simulation capabilities for model predictions - Sensitivity analysis tools for parameter exploration

Installation

From CRAN

install.packages("SimuRg")

Illustrated example

First of all, the model should be calibrated with Monolix fitter. For this goal, Monolix should be installed on the computer. As this software have commercial license, we start our example with the conversion from the Monolix output files into the generalized fit output.

library("SimuRg")
library(stringr)
# Convert Monolix project results
test_folder <- system.file("extdata", "Monolix_objects", package = "SimuRg")
if (substr(test_folder, nchar(test_folder), nchar(test_folder)) != "/")
   test_folder <- str_c(test_folder, "/")
pro_name <- "proj-solo"
result <- sg_converter(folder_path = test_folder, proj_name = pro_name)

# Running goodness-of-fit objects
sg_gof_obpr(result)
sg_gof_res(
  fpath_i = result,
  res_type = "IWRES",
  vs_time = TRUE
)
sg_gof_par_cov(
  fpath_i = result,
  ptype = "IndParvsCov",
  cont_cov = cont_cov,
  cat_cov = cat_cov
)
sg_gof_par_dist(fpath_i = result)
sg_gof_res_dist(fpath_i = result, res_type = "IWRES")
sg_gof_res(
  fpath_i = result,
  res_type = "IWRES",
  vs_time = TRUE
)

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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