Smoother introduction to functions?

[martinherrerias]

Smoother introduction to functions?

[Malberten]

On the point about the return() statement (not sure if this deserves its own issue, but it fits here nicely):

Further down it is explained, that "R will automatically return the results of whatever command is executed on the last line of the function" (https://swcarpentry.github.io/r-novice-gapminder/10-functions.html#more-on-combining-functions). I think this statement is misleading, since you could think that in the example above you can just remove the return() line and it works the same. But you would also need to omit the "gdp<-" in the line before.

So I would suggest to rather include to equivalent examples, one with a return() statement, and one without.

Apart from that I fully agree with the issues raised by @martinherrerias.