Noisy sinc dataset

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Description

Noisy sinc dataset generated via rnorm(200, mean=sin(x)/x, sd=0.2*abs(sin(x)/x)) with x <- seq(-3*pi, 3*pi, length=200). Includes the theoretical 5th, 50th, and 95th percentiles.

Examples

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data(sinc)
plot(sinc$x, sinc$y, ylim = range(pretty(c(sinc$y, sinc$tau))))
matlines(sinc$x, sinc$tau, lwd = 2)