Fixing Jupyter access denied on Ubuntu 22.04

After the upgrade to Ubuntu 22.04 Jupyter Notebook (on Firefox 99.0.1) would greet me with an Access Denied error. Not exactly conducive to work.

I tried setting access right of the directories (I also thought about access issues given that .local is a hidden directory), but it turns out that creating an explicit configuration helps:

jupyter notebook --generate-config

This creates a file at: ~/.jupyter/jupyter_notebook_config.py

and in this (text) file we’re looking for c.NotebookApp.use_redirect_file, uncomment it, and set it to

c.NotebookApp.use_redirect_file = False

(as explained in the comments; this seems completely fine on a single-user machine).

Wordscores and JFreq – an update

An old post of mine on using JFreq and Wordscores in R still gets frequent hits. For some documents, the current version of JFreq doesn’t work as well as the old one (which you can find here [I’m just hosting this, all credit to Will Lowe]). For even longer documents, we have a Python script by Thiago Marzagão archived here (I have never tried this). And then there is quanteda, the new R package that also does Wordscores.

Having said this, a recent working paper by Bastiaan Bruinsma, Kostas Gemenis heavily criticize Wordscores. While their work does not discredit Wordscores as such (merely the quick and easy approach Wordscores advertises — which depending on your view is the essence of Wordscores), I prefer to read it as a call to validating Wordscores before they are applied. After all, in some situations they seems to ‘work’ pretty well, as Laura Morales and I show in our recent paper in Party Politics.