The current CRAN version generates NOTEs on some systems regarding large sizes of both "docs" and "libs" directories. These are unavoidable, as the package contains a large C++ code base, and also requires extensive documentation. The "docs" folders contain only 4 images generated by "ggplot2", which are relatively simple and already as small as possible in size.
Other than that, this submission generates no additional notes or warnings on:
C++ source code in package also generates no warnings with Clang++ -Weverything
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