v1.8.0

New Features

• Added MultiGroupRCD algorithm, RCD for multiple datasets.
• Add extract_ancestors method to lingam.utils.
• Modified hsic.py to speed up independence test HSIC.
• Added to utils.make_dot the ability to highlight paths between variables in a causal graph.
• Added utils.make_dot_hightlight method to highlight ancestors and descendants of a specified variable in a causal graph.

Experimental features

• Added CausalDataGenerator tool to lingam.experimental.

Code Fixes

• Fixed VAR trend argument used in VARLiNGAM (#86)

Documentation

• Minor text correction on causal_effect.rst