Reducing computing time in floss #778
Description
We can see the following lines in method update:
As shown above, we are computing the full arrays M_T and Σ_T in each call of this method. However, this might be time consuming, and a better way is to just update these arrays in each call. It seems that this part of code is similar to:
which is a part of method _update_egress in class stumpi. Here, we take advantage of the previously-computed M_T and Σ_T, and we just update it.
In floss, we need to create attributes M_T and Σ_T when we create an instance of this class, and then update them.