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AccelStab/README.md

Accelerated Stability Kinetic Modelling

lifecycle

Overview

This package utilises the Šesták–Berggren equation alongside the Arrhenius equation to make a simple and consistent way for a user to carry out the calculations and predictions required by accelerated stability studies. Currently the package works with decreasing variables, you may choose to transform your increasing variable into a decreasing one but note that your choice of transformation can impact the outcome.

The available functions within the package are as follows:

  • step1_down() Fit the one-step Šesták–Berggren kinetic model.
  • step1_plot_desc() Plot the stability data.
  • step1_plot_pred() Plot the stability data and visualise the predictions.
  • step1_plot_CI() Plot the stability data and visualise the predictions with confidence intervals.
  • step1_plot_PI() Plot the stability data and visualise the predictions with prediction intervals.
  • step1_plot_T() Plot the stability data and visualise the predictions with focus on one temperature.
  • excursion() Predict a temperature excursion for a product.
  • step1_down_rmse() Calculate Root Mean Square Error (RMSE) for the one-step Šesták–Berggren kinetic model.
  • step1_plot_diagnostic() Generate residual diagnostic plots from a step1_down fit.
  • step1_sample_mvt() Take a selected number of samples from the multivariate t distribution.

Installation

Install AccelStab the following way -

install.packages("AccelStab")
library(AccelStab)

Feedback

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