Gaussian window
Return the filter coefficients of a Gaussian window of length n.
gausswin(n, a = 2.5)
n |
Window length, specified as a positive integer. |
a |
Width factor, specified as a positive real scalar. |
The width of the window is inversely proportional to the parameter a.
Use larger a for a narrower window. Use larger m for a smoother
curve.
w = e^{(-(a*x)^{2}/2 )}
for x <- seq(-(n - 1) / n, (n - 1) / n, by = n).
The exact correspondence with the standard deviation of a Gaussian probability density function is σ = (n - 1) / (2a).
Gaussian convolution window, returned as a vector.
Paul Kienzle, pkienzle@users.sf.net.
Conversion to R by Geert van Boxtel G.J.M.vanBoxtel@gmail.com.
g1 <- gausswin(64) g2 <- gausswin(64, 5) plot (g1, type = "l", xlab = "Samples", ylab =" Amplitude", ylim = c(0, 1)) lines(g2, col = "red")
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