gausswin function

Gaussian window

Return the filter coefficients of a Gaussian window of length n.

gausswin(n, a = 2.5)

Arguments

• n: Window length, specified as a positive integer.
• a: Width factor, specified as a positive real scalar. a is inversely proportional to the width of the window. Default: 2.5.

Returns

Gaussian convolution window, returned as a vector.

Details

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.

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 $\sigma = (n - 1) / (2a)$.

Examples

g1 <- gausswin(64)
g2 <- gausswin(64, 5)
plot (g1, type = "l", xlab = "Samples", ylab =" Amplitude", ylim = c(0, 1))
lines(g2, col = "red")

Author(s)

Paul Kienzle, pkienzle@users.sf.net .

Conversion to R by Geert van Boxtel G.J.M.vanBoxtel@gmail.com .