Thread:Mathmagician/@comment-3153244-20121005032656/@comment-3153244-20121007103547

Really, how could I have missed that >.< ...and you mentioned it explicitly... ("Take careful note of the extra pair of parenthesis around the (A) | (B)") (Btw, filter functions perfectly now, with your help :D)

Your explanations very detailed and logical; it helped me understand quite a lot more.

One last question: What's the function of " '''"? I'm almost definitely sure it's not the same as " " but I can't think of what it would be. E.g.

( ( (rcount("(?:[A-Z])",no_nothing) ) / ( length_no_nothing + 1 )