baskint

baskint

Machine Learning in Elixir:294 Axon.Loop.log/4 is undefined or private. Did you mean: * log/2 * log/3

@seanmor5

On Page 294, cannot run the training loop. I think the Axon.Loop.handle signature has changed. Getting this error:

step_fn
|> Axon.Loop.loop(init_fn)
|> Axon.Loop.handle(:epoch_completed, &GAN.display_sample(&1, generator_fn))
|> Axon.Loop.log(:iteration_completed, fn
%Axon.Loop.State{epoch: epoch, iteration: iter, step_state: state} ->
d_loss = state[:loss]["discriminator"]
g_loss = state[:loss]["generator"]
"\rEpoch: #{epoch}, batch: #{iter},"
<> " d_loss: #{Nx.to_number(d_loss)},"
<> " g_loss: #{Nx.to_number(g_loss)}"
end, :stdio)
|> Axon.Loop.run(train_data, %{}, compiler: EXLA, epochs: 10)

and even changed to this:
Axon.Loop.handle_event(:epoch_completed, &GAN.display_sample(&1, generator_fn))

Here is the error I am seeing:

** (UndefinedFunctionError) function Axon.Loop.log/4 is undefined or private. Did you mean:

      * log/2
      * log/3

    (axon 0.6.0) Axon.Loop.log(#Axon.Loop<metrics: %{}, handlers: %{started: [], halted: [], completed: [], epoch_started: [], iteration_started: [], iteration_completed: [], epoch_completed: [{#Function<42.105768164/1 in :erl_eval.expr/6>, #Function<6.115020529/2 in Axon.Loop.build_filter_fn/1>}], epoch_halted: []}, ...>, :iteration_completed, #Function<42.105768164/1 in :erl_eval.expr/6>, :stdio)
    #cell:yoevooqxcl5jdmoy:12: (file)

Marked As Solved

seanmor5

seanmor5

Author of Genetic Algorithms in Elixir

Thanks for pointing out. The correct function is:

|> Axon.Loop.log(fn
  %Axon.Loop.State{epoch: epoch, iteration: iter, step_state: state} ->
    d_loss = state[:loss]["discriminator"]
    g_loss = state[:loss]["generator"]
    "\rEpoch: #{epoch}, batch: #{iter},"
      <> " d_loss: #{Nx.to_number(d_loss)},"
      <> " g_loss: #{Nx.to_number(g_loss)}"
end, event: :iteration_completed, device: :stdio)

Where Next?

Popular Pragmatic Bookshelf topics Top

jon
Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online: p. 186 But...
New
belgoros
Following the steps described in Chapter 6 of the book, I’m stuck with running the migration as described on page 84: bundle exec sequel...
New
jeffmcompsci
Title: Design and Build Great Web APIs - typo “https://company-atk.herokuapp.com/2258ie4t68jv” (page 19, third bullet in URL list) Typo:...
New
Alexandr
Hi everyone! There is an error on the page 71 in the book “Programming machine learning from coding to depp learning” P. Perrotta. You c...
New
gilesdotcodes
In case this helps anyone, I’ve had issues setting up the rails source code. Here were the solutions: In Gemfile, change gem 'rails' t...
New
patoncrispy
I’m new to Rust and am using this book to learn more as well as to feed my interest in game dev. I’ve just finished the flappy dragon exa...
New
dsmith42
Hey there, I’m enjoying this book and have learned a few things alredayd. However, in Chapter 4 I believe we are meant to see the “&gt;...
New
s2k
Hi all, currently I wonder how the Tailwind colours work (or don’t work). For example, in app/views/layouts/application.html.erb I have...
New
Henrai
Hi, I’m working on the Chapter 8 of the book. After I add add the point_offset, I’m still able to see acne: In the image above, I re...
New
dachristenson
I’ve got to the end of Ch. 11, and the app runs, with all tabs displaying what they should – at first. After switching around between St...
New

Other popular topics Top

PragmaticBookshelf
Brace yourself for a fun challenge: build a photorealistic 3D renderer from scratch! In just a couple of weeks, build a ray tracer that r...
New
PragmaticBookshelf
Free and open source software is the default choice for the technologies that run our world, and it’s built and maintained by people like...
New
AstonJ
Or looking forward to? :nerd_face:
498 13326 269
New
AstonJ
Curious to know which languages and frameworks you’re all thinking about learning next :upside_down_face: Perhaps if there’s enough peop...
New
Rainer
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
New
AstonJ
We’ve talked about his book briefly here but it is quickly becoming obsolete - so he’s decided to create a series of 7 podcasts, the firs...
New
Help
I am trying to crate a game for the Nintendo switch, I wanted to use Java as I am comfortable with that programming language. Can you use...
New
PragmaticBookshelf
Author Spotlight Rebecca Skinner @RebeccaSkinner Welcome to our latest author spotlight, where we sit down with Rebecca Skinner, auth...
New
New
PragmaticBookshelf
Use advanced functional programming principles, practical Domain-Driven Design techniques, and production-ready Elixir code to build scal...
New

Sub Categories: