MixR package is developed as a graphical user interface around the <code>nlmixr</code> package. It is build with the <code>shiny</code> package combined with <code>shinydashboard</code>. Many of the functions within the package can also be used outside the interface within an interactive R session. This vignette will give a brief introduction on how the package can be used and what the most important functions are. When working with this package, there are two important assumptions:</p>
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