For this series of data:
4,5,7,3,4,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0
How would I graph the percentile range...that is, this range of numbers fall the lowest 25%, then 50%, then 75%.
I tried
quatrile(array,x,1)
quatrile(array,x,2)
but the results don't make alot of sense.