Accumulated average

[Dicken]

I want to accumulte the but as ans average,   so :  { 1, 1, 1 ,1} =  1 / 1 ,  2 /2 ,  3/3 , 4/ 4 
so here the average is calculated in select;

let
  alist =
    let
      alist = List.Numbers(1, 12, 1)
    in
      alist,
  result = List.Generate(
    () => [x = 0, y = alist{0}, z = y / (x + 1)],
    each [x] < List.Count(alist),
    each [x = [x] + 1, y = alist{x}, z = [z] + y],
    each [z] / ([x] + 1)
  )
in
  result

but can i get the average in the function, i have tried various such as ;

= List.Generate
               ()=> [ x = 1 ,  y = alist {0} , z = y / x  ] , 
               each [x] < List.Count( alist ), 
               each [ x  = [x] + 1, y = alist {x} , z =  List.Sum( { [z], y} ) / x  ],
               each [z] )

i have played around with various x = 0 , x = 1 etc. but cannot get one to work?

[ronrsnfld]

Not sure what you want for a result.

What result would you like to see for your List.Numbers(1,12,1) list?
Your code gives the average where for each row n, the average of values alist^{0..n}

Perhaps if you gave an example other than {1,1,1,1}??