Suppose that whether or not it rains today depends on previous weather
conditions through the last two days.
Specifically , suppose that
if it has rained for the past two days,then it will rain tommorow with probability 0.7;
if it rained today but not yesterday, then i will rain tommorow with probability o.5;
if it rained yesterday but not today, then it will rain tommorow with probability 0.4;
if it has not rained in the past two days, then it will rain tommorow with probability 0.2.
the transition matrix
i dont understand the mechanism to obtain the transition matrix in such a pattern............
why there are zeros? what are the meanings behind them?