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29 lines
612 B
29 lines
612 B
defmodule Toolex do
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import Matrex.Operators
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import Kernel, except: [-: 1, +: 2, -: 2, *: 2, /: 2, <|>: 2]
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import Matrex
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# Full
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def cost_d(yp, yr) do
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subtract(yp, yr)
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end
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def sum_inline(a,b) do
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# IO.puts inspect Enum.count(a)
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a + (Enum.reduce(1..5, b, fn x, acc -> concat(acc, b, :rows) end))
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end
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# Inprogres
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def sigm(x) do
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1 / (1 + Math.pow(Math.e, (-x)))
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end
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def sigm_d(x) do
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x * (1 - x)
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end
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def cost(yp, yr) do
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m = yp - yr
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Matrex.sum(Matrex.Operators.pow2(m))/Enum.count(m)
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end
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end
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