马尔可夫过程_srtp论文(27)

数学建模,马尔科夫链,论文

F4(1,1)=F4(1,1)+1; case 2

F4(1,2)=F4(1,2)+1; case 3

F4(1,3)=F4(1,3)+1; case 4

F4(1,4)=F4(1,4)+1; end case 2

switch Z(i+4) case 1

F4(2,1)=F4(2,1)+1; case 2

F4(2,2)=F4(2,2)+1; case 3

F4(2,3)=F4(2,3)+1; case 4

F4(2,4)=F4(2,4)+1; end case 3

switch Z(i+4) case 1

F4(3,1)=F4(3,1)+1; case 2

F4(3,2)=F4(3,2)+1; case 3

F4(3,3)=F4(3,3)+1; case 4

F4(3,4)=F4(3,4)+1; end case 4

switch Z(i+4) case 1

F4(4,1)=F4(4,1)+1; case 2

F4(4,2)=F4(4,2)+1; case 3

F4(4,3)=F4(4,3)+1; case 4

F4(4,4)=F4(4,4)+1; end end end

for i=1:4 %计算4步转移概率矩阵P4