CorrelationFunction
CorrelationFunction[data, hspec] estimates the correlation function at lags hspec from data.
CorrelationFunction[proc, hspec] represents the correlation function at lags hspec for the random process proc.
CorrelationFunction[proc, s, t] represents the correlation function at times s and t for the random process proc.
Examples
Estimate correlation from data:
data = RandomReal[1, 100];
CorrelationFunction[data, {1, 2, 3}]Correlation function of a process:
CorrelationFunction[WienerProcess[], s, t]
(* Min[s, t] *)Please visit the official Wolfram Language Reference for more details.