Simple Moving Average calculation in Elixir

Add sma in the list of dependencies as below:

def deps do
  [{:sma, "~> 0.1"}]
end

or directly from github

def deps do
  [{:sma, github: "techgaun/ex_sma"}]
end

import SMA
sma([], 1)
# :error

sma([1,2,3,4,5], 2)
# [1.5, 2.5, 3.5, 4.5]