The tutorials from "How to Build a Brain" in Nengo 2.0

Examples & Tutorials
1

Hi,

As title, recently I’m studying on the book How to Build a Brain and trying to write some Nengo code as progress. I noted that this is mentioned on the documentation page, “the tutorials from How to Build a Brain have been re-written for Nengo 2.0 as iPython notebooks.” So I am here to ask whether it is available now. Thanks for your reply or any further advice.

Sincerely,
Edward Chen

2

The following is the reply from Sean Aubin @Seanny123 (from nengo-user@ctnsrv.uwaterloo.ca):

Hey Edward,

Would you mind posting this question on our forum (forum.nengo.ai) where we now answer questions?

The tutorials can be found here: https://github.com/s72sue/Nengo2-Tutorials

(End of the mail.)

2 Likes
3

Hi Edward,

If you want to run the tutorials in the Nengo GUI, you can also find them in the nengo_gui/examples/hbb_tutorials folder once you have installed nengo gui.

https://github.com/nengo/nengo_gui/tree/master/nengo_gui/examples/hbb_tutorials

3 Likes
4

Sweet!

thanks for your reminder.

Edward Chen

5

Hi Sue (or whoever),
I can see the hbb_tutorials in my browser, but it’s not clear to me how to run them…
Do I copy and paste the code from your notated code into a nengo window? Or is there something easier?
Thanks from the technically challenged…
Larry

6

Hi Michael,

You will need to install and run Nengo GUI in order to run the tutorials.
Here are the instructions for doing so:

Don’t hesitate to ask me if you have any questions during the install
process etc.

Best,
Su

7

Hi Sue,
Thanks for your response… I guess I wasn’t that clear in my question…

  • I installed Anacondo
  • I installed the Nengo_Gui
  • I opened the Nengo Gui. It started at a location http://localhost:8080
    /?filename=…\lib\site-packages\nengo_gui\examples\default.py. There was a
    square (input) and a population of neurons on the left panel and some code
    fragments on the right panel. (There was nothing related to the tutorials.)
  • Since I did not see anything on the hbb tutorials, I entered your path in
    the browser input.https://github.com/s72sue/Nengo2-Tutorials/blob/master/chapter2/scalars.ipynb. I got a list of the tutorials.
  • I selected, say, Chapter 2 and selected the tutorial for a scalar. I got
    the screen as below.

Pasted image1366×768 112 KB

  • Now I am stuck. I could copy and past the code into the nengo gui, but
    I’m hoping there is an easier way to run the tutorial.

Any help would be greatly appreciated.
Best,
Larry

8

Hi Larry,

Apologies for missing your comment (I didn’t get an email notification of your response). We just had a new release for Nengo GUI. The tutorials from the book “How to Build a Brain” are now included as built-in examples in the GUI. You can use pip to get the new version of Nengo GUI:

pip install --upgrade nengo_gui

After upgrading, when you open Nengo GUI, you should see an open file icon on the leftmost side of the top toolbar. Click on that icon => then click on built-in examples => hbb_tutorials. Here you will find a list of tutorials from each chapter in the “How to Build a Brain” book.

Let me know if you have any further questions.