Averages/Simple moving average: Difference between revisions

=={{header|Julia}}==

A short version that buffers all numbers seen from the start.

<lang Julia>SMA(N) = let buffer = Number[]

x -> (push!(buffer, x) ; mean(buffer[max(1,end-N+1):end]))

end</lang>

A version with a buffer of size at most N. An initial value can be

provided for the buffer.

<lang Julia>SMA(N, buffer = Number[]) =

x -> begin

push!(buffer, x)

if length(buffer) == N+1 shift!(buffer) end

mean(buffer)

end</lang>

{{Out}}

<pre>julia> test = SMA(3) ; test(1), test(2), test(3), test(4), test(5)

(1.0,1.5,2.0,3.0,4.0)</pre>