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
yulkin
your book suggests to use Image.toByteData() to convert image to bytes, however I get the following error: "the getter ‘toByteData’ isn’t...
New
edruder
I thought that there might be interest in using the book with Rails 6.1 and Ruby 2.7.2. I’ll note what I needed to do differently here. ...
New
raul
Hi Travis! Thank you for the cool book! :slight_smile: I made a list of issues and thought I could post them chapter by chapter. I’m rev...
New
herminiotorres
Hi! I know not the intentions behind this narrative when called, on page XI: mount() |&gt; handle_event() |&gt; render() but the correc...
New
New
AufHe
I’m a newbie to Rails 7 and have hit an issue with the bin/Dev script mentioned on pages 112-113. Iteration A1 - Seeing the list of prod...
New
taguniversalmachine
Hi, I am getting an error I cannot figure out on my test. I have what I think is the exact code from the book, other than I changed “us...
New
a.zampa
@mfazio23 I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
New
roadbike
From page 13: On Python 3.7, you can install the libraries with pip by running these commands inside a Python venv using Visual Studio ...
New

Other popular topics Top

Devtalk
Hello Devtalk World! Please let us know a little about who you are and where you’re from :nerd_face:
New
PragmaticBookshelf
Stop developing web apps with yesterday’s tools. Today, developers are increasingly adopting Clojure as a web-development platform. See f...
New
PragmaticBookshelf
Learn from the award-winning programming series that inspired the Elixir language, and go on a step-by-step journey through the most impo...
New
PragmaticBookshelf
Write Elixir tests that you can be proud of. Dive into Elixir’s test philosophy and gain mastery over the terminology and concepts that u...
New
PragmaticBookshelf
From finance to artificial intelligence, genetic algorithms are a powerful tool with a wide array of applications. But you don't need an ...
New
AstonJ
Biggest jackpot ever apparently! :upside_down_face: I don’t (usually) gamble/play the lottery, but working on a program to predict the...
New
foxtrottwist
A few weeks ago I started using Warp a terminal written in rust. Though in it’s current state of development there are a few caveats (tab...
New
New
AstonJ
If you’re getting errors like this: psql: error: connection to server on socket “/tmp/.s.PGSQL.5432” failed: No such file or directory ...
New
AnfaengerAlex
Hello, I’m a beginner in Android development and I’m facing an issue with my project setup. In my build.gradle.kts file, I have the foll...
New

Sub Categories: