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2003 Apr 16
2
Local parameter calculation
Dear all,
I am a newbie in R. I encounter a problem as follows.
I have 2 vectors X and Y that have a equal length of several thousand. I see
Y as the function of X. Both of them are random. X is not arrranged in any
order. Of course, I do plot(X,Y). Now, I want to use a sliding narrow window
to run over each X, then calculate the variances within that window.
Anyone knows easy way in R to do this? Reply is appreciated.
-MY