Matrices in the unconstrained space

The matrix in the unconstrained space at each iteration. This data set is saved as a CSV file with name Thetas_CURRENT_INSTANCE_NAME if SAVE_OUTPUT=True in a folder named according to INSTANCE_OUTPUT_DIRECTORY. The ith row represents the matrix in the unconstrained space of the (i-1)th iteration. Note that the matrices have been flattened to a row so that the output is 2D instead of 3D. This means that, for example, the first row of a 3x3 matrix is represented by columns 0-2, the second row by columns 3-5 and the third row by columns 6-8, see the example below. The matrix at the 0th iteration (i.e., the first row), represents the inversely transformed transition matrix.

Example data set of matrices in the unconstrained space.

0	1	2	3	4	5	6	7	8
-6.907	0.003	0.001	-0.001	-6.907	0.021	0.032	-6.907	-0.045
-6.907	0.017	0.015	0.013	-6.907	0.035	0.046	-6.907	-0.031

This data set can be reshaped so that a matrix is obtained at each iteration. For example, the matrix at the first iteration is as follows:

The matrix in the unconstrained space at the first iteration.

0	1	2
-6.907	0.017	0.015
0.013	-6.907	0.035
0.046	-6.907	-0.031