Some examples illustrating basic objects in RegReg

• Using constraints: an introduction to the basic object in proximal gradient descent, the atoms.

• Some common loss functions: an introduction to the other basic object in proximal gradient descent: smooth functions.

• lasso_example:

• The Diabetes data from LARS: a classic!

• group_lasso_example

• tfocs_example: smoothing atoms in a similar fashion to TFOCS and NESTA