Added tICA dimensionality reduction
add test
add tica example
Changes from bharath
add more example
Two bugs from code review
cast eigenvalues to real
test
test 2
Add regularixation
unnecessary
Cast input data to float64
Merge pull request #102 from rmcgibbo/tica

Add tICA
Update ghmm.py

Stop warn on cast.
Merge pull request #106 from kyleabeauchamp/patch-4

Update ghmm.py