Heaviside function (step function)

Heaviside function (step function)

Usage

heaviside(x, x0 = 0)

Arguments

x

A vector of real numbers.

x0

A real number. The x value at which the function step occurs.

Value

One of the two numbers 0 or 1.

Examples

x <- seq(-3,5,length=1000)
x0 <- 1
y <- heaviside(x,x0)
plot(x,y,type="l")

# Step up and step down
x1 <- seq(-3,5,length=1000)
x10 <- 1
y1 <- heaviside(x1,x10)
x2 <- seq(1,9,length=1000)
x20 <- 5
y2 <- heaviside(x2,x20)
y2 <- 1-y2
plot(x1,y1,type="l",xlim=c(-3,9),xlab="x",ylab="y")
points(x2,y2,type="l")