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@fonsp
Created April 23, 2020 11:09
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### A Pluto.jl notebook ###
# v0.7.4
using Markdown
macro bind(def, element)
quote
local el = $(esc(element))
global $(esc(def)) = Core.applicable(Base.peek, el) ? Base.peek(el) : missing
el
end
end
# ╔═╡ c7febb2c-854c-11ea-24a4-ebc21ee25db6
function train()
sleep(.1) # fake
end
# ╔═╡ 2682c10e-8552-11ea-0467-158e9dfe4e09
md"This is how you would compute 10 epochs in a standalone script:"
# ╔═╡ 9c43f83c-854c-11ea-2761-b5702ecef24f
begin
errors1 = Float64[]
for epoch in 1:10
train()
ϵ = 1.0 / epoch # fake
push!(errors1, ϵ)
end
end
# ╔═╡ 45db03e0-854d-11ea-0f8a-b14125e60872
plot(errors1, xlabel="epoch", ylabel="error")
# ╔═╡ 414a4670-8551-11ea-1de5-ab121ad27de6
md"The plot only gets generated when the previous cell has **finished**, i.e. when all epochs have been computed."
# ╔═╡ 30e6b0c0-8551-11ea-372a-7dd071dbcfb6
md"### More interactive"
# ╔═╡ 0e5528aa-854e-11ea-2120-8fb1bf1aba7e
md"Instead, you could split the code into cells, and use a `Button` to drive evaluations."
# ╔═╡ 50843c7e-854f-11ea-1dea-7569a8909ba6
errors2 = Float64[]
# ╔═╡ 8503e5ee-8551-11ea-31e5-cd42466f72ea
md"The array `errors2` is only assigned to once, initialising it to the empty array. We later use `push!` to add elements _non-reactively_ - Pluto doesn't track value changes _(such as `x[2] = 456`)_, it only tracks variable assingments _(such as `x = [123, 456]`)_.
To make sure that the plot gets updated, we assign to a dummy variable, `epoch_done`. Because this is a regular global assignment, it will be reactive."
# ╔═╡ f30da028-854c-11ea-20dc-65a990065083
using Plots
# ╔═╡ 17807bd2-854e-11ea-1409-758d522a64b5
using PlutoUI
# ╔═╡ 101b0f58-854f-11ea-2d9b-b99d6a9464a3
@bind advance_epoch PlutoUI.Button("Advance epoch 🖐")
# ╔═╡ 424fca06-854f-11ea-2563-9dee2c216b3a
begin
advance_epoch # reference the variable to make this cell react to it
let
epoch = length(errors2) + 1
train()
ϵ = 1.0 / epoch # fake
push!(errors2, ϵ)
end
epoch_done = "🥔"
end
# ╔═╡ a931b57c-854f-11ea-3db4-6bc02dc496b8
let
epoch_done # reference the variable to make this cell react to it
plot(errors2, xlabel="epoch", ylabel="error")
end
# ╔═╡ Cell order:
# ╠═f30da028-854c-11ea-20dc-65a990065083
# ╠═17807bd2-854e-11ea-1409-758d522a64b5
# ╠═c7febb2c-854c-11ea-24a4-ebc21ee25db6
# ╟─2682c10e-8552-11ea-0467-158e9dfe4e09
# ╠═9c43f83c-854c-11ea-2761-b5702ecef24f
# ╠═45db03e0-854d-11ea-0f8a-b14125e60872
# ╟─414a4670-8551-11ea-1de5-ab121ad27de6
# ╟─30e6b0c0-8551-11ea-372a-7dd071dbcfb6
# ╟─0e5528aa-854e-11ea-2120-8fb1bf1aba7e
# ╠═50843c7e-854f-11ea-1dea-7569a8909ba6
# ╠═101b0f58-854f-11ea-2d9b-b99d6a9464a3
# ╠═424fca06-854f-11ea-2563-9dee2c216b3a
# ╠═a931b57c-854f-11ea-3db4-6bc02dc496b8
# ╟─8503e5ee-8551-11ea-31e5-cd42466f72ea
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