Upgrade to v2.2.1

[jonathan-taylor]

Chore

• Removed jupytext metadata from the headers of all Rmd files.
• Updated the "Open in Colab" and "Binder" links to point to the new version v2.2.1.

Fixes

• Ch02-statlearn-lab.Rmd:
  • Corrected the pd.read_csv call to use sep="\s+" for whitespace-delimited data.
  • Cleaned up plotting commands.
• Ch03-linreg-lab.Rmd:
  • Improved code readability by accessing model parameters by name (results.params['intercept']) instead of by index.
• Ch06-varselect-lab.Rmd:
  • Added code to suppress warnings from skl.ElasticNet.
  • Updated comments to reflect the new warning handling.
• Ch10-deeplearning-lab.Rmd:
  • Ensured correct data type conversion to np.float32 before creating a torch tensor.

[jonathan-taylor]

@all-contributors please usage

[allcontributors]

@jonathan-taylor

I could not determine your intention.

Basic usage: @all-contributors please add @Someone for code, doc and infra

For other usages see the documentation