liesel 0.2.2

What's new?

• 🚚 The tutorials have been updated to v.0.2.2 and are now part of the documentation (@jobrachem, @wiep, @hriebl, @GianmarcoCallegher)
• ✨ Added new tutorial showcasing the interface to PyMC (@GianmarcoCallegher)
• ✨ Added node / variable groups (#28, @jobrachem)
• ✨ Sampling from the MultivariateNormalDegenerate is now possible (#34, @jobrachem)
• 🚧 Fixed undefined behaviour in the distreg module (#20, @hriebl)
• 🚧 The distreg module will now use variables names as position keys (#22, @hriebl)

All commits since 0.2.1