example: Bastic structure for example data creation
example: Example data creation

Two stochastic processes x1, x2 with double well potential with slightly
different variances and mixed by the following unitary transformation.

   / y1 \     / 3/5 -4/5 \    / x1 \
   |    |  =  |          | =  |    |
   \ y2 /     \ 4/5  3/5 /    \ x2 /