[quote=atlove;272782]OK, i got what you mean. What we can do now is to learn the knowledge of the system. Otherwise, we need to try and test with the given data to make such a model. Can you show me an example that how to found those variable with enough information?[quote]
E(.) is the expectation operator, which gives the mean of its argument. If x is the state E(x) is the expected value of the state. The expectation of a matrix is the matrix of expectations.Quote:
Is the E(x) purely the mean of state ?
If i have a matrix
....|x11 x12 x13|
x= |x21 x22 x23|
....|x31 x32 x33|
how to find the E(x)?