All of the data directories are empty!

[ttennebkram]

All of the subdirectories of data/ just have a README.txt file stating the data should go there, but it's not there.

I'm looking for the iris data to start with.

[rkneusel9]

They are placeholders, the location where you should download the datasets to from the source URLs in the book. However, the iris dataset location has changed, the correct URL is:

https://archive.ics.uci.edu/ml/machine-learning-databases/iris/