# [R] [FORGED] Plot step function

Jim Lemon drjimlemon at gmail.com
Sun Feb 7 22:19:49 CET 2016

```Hail Jupiter,
Might a slight alteration of Rolf's suggestion do the trick?

plot(c(-4,0,4),c(0,1,1),type="s",xlab="x",ylab="y")

Jim

On Sun, Feb 7, 2016 at 8:49 AM, jupiter <jupiter.hce at gmail.com> wrote:

> Thank you for the all response, how can the point y (0.0) on the same x
> axis, and X increases 1 between [-4, 4]?
>
> On Sun, Feb 7, 2016 at 5:29 AM, Rolf Turner <r.turner at auckland.ac.nz>
> wrote:
>
> > On 07/02/16 01:11, jupiter wrote:
> >
> >> Hi,
> >>
> >> I am just starting to learn R, sorry for asking a simple question. How
> can
> >> plot a line x <= 0 y = 0, x > 0 y = 1?
> >>
> >
> > One way:
> >
> >     plot(c(-1,0,1),c(0,1,1),type="s",xlab="x",ylab="y")
> >
> > cheers,
> >
> > Rolf Turner
> >
> > --
> > Technical Editor ANZJS
> > Department of Statistics
> > University of Auckland
> > Phone: +64-9-373-7599 ext. 88276
> >
>
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>
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```