PKPDsim version 1.4.1

PKPDsim 1.4.1

This release fixes a few minor issues:

• an edge case where dose-dependent variables or parameters were not correctly initialized
• a bug in the Cpp template for ODE models related to IOV bins that could potentially result in runtime error

Also:

• small improvements to the README
• grammar and code style fixes in vignettes
• removed test for warning in is_positive_definite() that is not thrown on macos-arm64