Suppose that I have matrix matT1
at time t and matT2
at time t+1:
matT1 = {
{0.98, 0.95, 1, 0.85, 1.40},
{1.46, 0.36, 0.96, 0.15, 0.97},
{0.24, 1.2, 1.4, 0.96, 0.46},
{1.1, 1.3, 0.03, 0.81, 0.53},
{1.3, 1.5, 1.3, 0.51, 0.42}
};
matT2 = {
{0.44, 1, 0.77, 1.2, 0.61},
{0.58, 0.57, 0.65, 0.19, 1},
{1.4, 0.14, 1.2, 1.4, 0.96},
{1.4, 0.95, 0.74, 0.56, 0.47},
{0.98, 0.45, 1.3, 0.34, 0.25}
};
Elements of these two matrices are assigned to one of the three states s1=[0, 0.5]
, s2=(0.5, 1]
, and s3=(1, 1.5]
. This yields:
matT1S = {
{s2, s2, s2, s2, s3},
{s3, s1, s2, s1, s2},
{s1, s3, s3, s2, s1},
{s3, s3, s1, s2, s2},
{s3, s3, s3, s2, s1}
};
matT2S = {
{s1, s2, s2, s3, s2},
{s2, s2, s2, s1, s2},
{s3, s1, s3, s3, s2},
{s3, s2, s2, s2, s1},
{s2, s1, s3, s1, s1}
};
We then derive a map of transition from matT1S
to matT2S
by manually comparing the states in both matrices. This generates the following map:
Rows are associated with time t and columns with t+1. This map illustrates that, out of 6 links in state s1
at time t, 2 remain in s1
at t+1, and 3 move to s2
at t+1 and 1 moves to s3
at t+1. Other numbers in the map should be read likewise. Using this map, we calculate a row-stochastic transition matrix as:
transMatrix = {
{2/6, 3/6, 1/6},
{3/10, 5/10, 2/10},
{2/9, 4/9, 3/9}
};
MatrixPower[transMatrix, 100]
produces the following limiting distribution:
The limiting distribution translates the current vector (6, 10, 9)
to (0.29, 0.49, 0.22)*(6, 10, 9) = (7,25, 12.25, 5.5)
. This means that states s1
and s2
host more links while state s3
looses its members.
My question: Although I found out the change shown as (7,25, 12.25, 5.5)
, I do not know which linkages are in each state in the final period t+100. I know that 7.25 will be in state s1
after 100 repetition of transition but which linkages are they? Basically, I like to know the specific linkages associated with (7.25, 12.25, 5.5)
.
Would it be possible to write a function transMatrix[matrixT_,matrixT1_]:=...
to produce: a transition matrix (row stochastic matrix), a final distribution of the linkages across three states, and subsets of the linkages across each state?