The button inputs are correct, however I think the wording and Fox’s silhouette can confuse come people.
The “Short Hop” portion is basically meant to say “input jump” then you should hit L or R right after so you don’t actually go into the air dodge animation, while holding a downward diagonal angle in the direction you wave to wavedash.
Note: Fox’s wavedash requires fairly quick inputs because his jump is one of the fastest in Melee
This diagram is done very well but I’d like to just clarify by editing the diagram. I honestly am not trying to offend gohikari by editing his work, I just wanted to clear up any misconceptions on how to wavedash for people trying to get into Melee/Project M.
(via xd1x)Source: gohikari