better error message for bad article ID?

[bbolker]

This StackOverflow question clearly reflects user error/confusion, but the error message that you get when putting in a bogus article ID,

Error in min(years):max(years) : result would be too long a vector
In addition: Warning messages:
1: In min(years) : no non-missing arguments to min; returning Inf
2: In max(years) : no non-missing arguments to max; returning -Inf

is not terribly transparent to new users, and could probably be clearer ...

[jkeirstead]

Thanks for raising this Ben. I'll add some checking of the arguments so that a more sensible error is thrown before it tries to create an infinitely long sequence of years!

[jefferis]

There is a fix for this in develop.