gsignal (version 0.3-7)

zerocrossing: Zero Crossing

Description

Estimate zero crossing points of waveform.

Usage

zerocrossing(x, y)

Value

Zero-crossing points

Arguments

x

the x-coordinates of points in the function.

y

the y-coordinates of points in the function.

Author

Carlo de Falco, [email protected].
Conversion to R by Geert van Boxtel, [email protected].

Examples

x <- seq(0, 1, length.out = 100)
y <- runif(100) - 0.5
x0 <- zerocrossing(x, y)
plot(x, y, type ="l", xlab = "", ylab = "")
points(x0, rep(0, length(x0)), col = "red")