If n is in (0,1), then q is the n-th quantile of x (n*100 percent quantile) If n<0, then q is the (n+1)-th largest entry of x If n>1, then q is the n-th smallest entry of x
Syntax
q = quantile(x,n)Input
| x | double | 
| n | double | 
Output
| q | double | 
Example
[~,x]=sort(rand(1,1000));
quantile(x,3)    % third smallest entry
quantile(x,-2)   % third largest entry
quantile(x,0.25) % 25 percent quantileans =
     3
ans =
   998
ans =
   250