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Pallavi06
what is correllogram of sine and cosine function???
I never heard of this before. Going by http://en.wikipedia.org/wiki/Autocorrelation "The autocorrelation of a periodic function is, itself, periodic with the same period" and by http://en.wikipedia.org/wiki/Correlogram "a correlogram, also known as an autocorrelation plot, is a plot of the sample autocorrelations"......"for checking randomness" Well, the plots over time of the sin and cos will show a high degree of non-randomness.