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 Apr 3 asked leading and lagging moving average indicator Mar 30 asked convergence in higher order mean implies convergence in lower order mean Feb 25 accepted example on variance of stochastic processes Feb 25 comment example on variance of stochastic processes got it. linearity of covariance was new to me. Feb 25 asked example on variance of stochastic processes Feb 13 comment spectrum and phase of function in frequency domain Got it guys. Once I have the fourier transform computed analytically, I can easily set up the complex vector and compute the amplitude and phase. R has support for complex numbers ugrad.stat.ubc.ca/R/library/base/html/complex.html and includes functions for finding amplitude and phase. Thanks all. Feb 13 accepted spectrum and phase of function in frequency domain Feb 13 comment spectrum and phase of function in frequency domain Sweet. Do you happen to come across function in R that does this similar to matlab? Feb 13 comment spectrum and phase of function in frequency domain reference: en.wikipedia.org/wiki/Fourier_transform Feb 13 revised spectrum and phase of function in frequency domain added 96 characters in body Feb 13 comment spectrum and phase of function in frequency domain Thanks. But I am using R and I don't think it has these functions. I am looking for mathematical formula for finding magnitude/phase so that I can write my functions. Feb 13 revised spectrum and phase of function in frequency domain edited tags Feb 13 asked spectrum and phase of function in frequency domain Dec 11 comment problem on strong law of large numbers Excellent. So we apply SLLN on the denominator and CLT on the numerator. Dec 11 accepted problem on strong law of large numbers Dec 9 comment problem on strong law of large numbers How do you get this result? Dec 9 asked problem on strong law of large numbers Dec 9 comment what does this set definition mean defined on independent random variables? It is also interesting to see that if I introduce two additional sets, defined as $A2 = (X2=X3)$ and $A3 = (X3=X1)$, $A1$, $A2$ and $A3$ are pairwise independent but not independent. Dec 9 accepted what does this set definition mean defined on independent random variables? Dec 9 asked what does this set definition mean defined on independent random variables?