install problem with google colab

[chengheben]

Hi Jae, I am a starter in using hddm. When I follow your tutorial in colab, it failed. I install pymc and kabuki successfully, but hddm failed.

The error went like: error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully. │ exit code: 1 ╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip. Preparing metadata (setup.py) ... error error: metadata-generation-failed

× Encountered error while generating package metadata. ╰─> See above for output.

note: This is an issue with the package mentioned above, not pip. hint: See above for details.

do you know how to solve the problem?

[psychNerdJae]

Hi, thanks for your note. I don't know off the top of my head what the underlying issue could be, but it looks like there's possibly something about a newer version of HDDM that breaks the installation process in a colab notebook. I spent some time trying to see whether I could modify the colab environment (e.g., by downgrading the Python installation to 3.6) to make the code run as-is, but it's not looking great.

I'll also note that since the writing of this tutorial many years ago, the developers have put out a new package called HSSM, which supersedes HDDM. I should probably update this tutorial series at some point to reflect that, but I'll also note that HSSM comes with built-in datasets and new tutorials written by the developers themselves, which you might find useful!

Unfortunately, I'm in the midst of dissertation-writing, so I don't have quite the mental bandwidth needed to look into this further. But hopefully, the HSSM materials will provide all the information you'll need to learn about using sequential sampling models – I've always found their documentation very helpful!