Changes and updated the solutions
Merge branch 'develop' into knns
Rmoved big data
Merge pull request #339 from AZaitzeff/knns

Knns
Merge pull request #341 from insertinterestingnamehere/corcov

Fixed aspect ratio on plots for correlation and covariance lab.
Added a little clarification
Merge pull request #343 from AZaitzeff/mst

Added a little clarification
Added helper file
Merge pull request #344 from AZaitzeff/mst

Added helper file