Document all exported functions

[maurolepore]

From @maurolepore on September 18, 2018 15:8

Running devtools::check() should warn you if the documentation of any function is incomplete (find more details here; http://r-pkgs.had.co.nz/check.html).

One good way to not miss any important piece of documentation is to step on the function's name and press Ctrl + Shift + Alt + R. That will automatically write the roxygen skeleton of key documentation inluding all parameters. You can also Insert Roxygen Skeleton form the Code menu:

_Copied from original issue: ervanSTRI/AGBfluxpack#8

[maurolepore]

This is kind of done. We need to fill lots of gaps, but check() will let us know.