On 10/1/2007 8:39 AM, Megh Dal wrote:> Hi, Can anyone give me a good explanation about what is the difference
between Stochastic Process and Time Series? In my knowledge Time series process
is one type of Stochastic process. Am I right? I need a further explanation.
You're partly right. When thinking in terms of probability theory,
"time series" usually means a stochastic process with a discrete time
index.
But "time series" is also used to mean an observed series of
observations indexed by time, and I think the closest thing for a
stochastic process would be "a realization of a stochastic process".
So
"time series" is not just a special case of "stochastic
process".
Duncan Murdoch