# [R] How to plot this simple step function?

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Thu Jan 17 08:14:27 CET 2013

```Sorry, missed a parenthesis:

ggplot( dta, aes( x=x, y=y, xend=xend, yend=yend )) +
geom_segment()+
geom_point( shape=16, size=4 ) +
geom_point( aes( x=xend, y=yend ), shape=1, size=4 )

If you have questions about base graphics or lattice, this forum is good. If you have questions about ggplot2, the ggplot2 Google group is probably a better bet than here.
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Sent from my phone. Please excuse my brevity.

Jeff Newmiller <jdnewmil at dcn.davis.ca.us> wrote:

>Base Graphics:
>
>plot(x,y,type="n")
>segments(x[-length(x)],y[-length(x)],x[-1],y[-length(x)])
>points(x[-length(x)],y[-length(x)],pch=16)
>points(x[-1],y[-length(x)],pch=1)
>
>Ggplot graphics:
>
>library(ggplot2)
>dta <- data.frame( x= x[-length(x)],y=y[-length(x)], xend=x[-1],
>yend=y[-length(x)] )
>ggplot( dta, aes( x=x, y=y, xend=xend, yend=yend )) +
>geom_segment()+
>geom_point( shape=16, size=4 ) +
>geom_point( aes( x=xend, y=yend, shape=1, size=4 )
>
>There is also lattice graphics, but I don't feel like putting that
>example together right now.
>
>As for how to use RStudio, please understand that RStudio has its own
>support forums. Please direct questions regarding that user interface
>there, and remember that the people answering questions here may be
>using completely different tools and operating systems than you are. I
>people's questions here to get the flavor of the kinds of question and
>answer format is preferred around here. Hint: this is a mailing list,
>not Nabble.
>
>Easy tutorials? There are lots of them, but they don't necessarily get
>you where you want to go. I recommend reading the Introduction to R
>document that comes with R, with particular focus on vectors, lists,
>matrices, data frames, and indexing. The apply family of functions will
>also be useful, but vectors and indexing are first priority. They all
>work together to make a very powerful combination, and learning those
>fundamentals will pay off in helping you decipher examples such as that
>ones above.
>---------------------------------------------------------------------------
>Jeff Newmiller                        The     .....       .....  Go
>Live...
>DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
>Go...
>                                     Live:   OO#.. Dead: OO#..  Playing
>Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
>/Software/Embedded Controllers)               .OO#.       .OO#.
>rocks...1k
>---------------------------------------------------------------------------
>
>Sent from my phone. Please excuse my brevity.
>
>Bornin1992 <ian at mcparland.ca> wrote:
>
>>Hi everyone,
>>
>>I am trying to graph a step function in R Studio. I just learned about
>>R
>>today and decided to try it!  The following is what I want it to look
>>like.
>>I graphed it using
>>
>>x <- 0:5
>>y <- c(0, .2, .3, .6, .9, 1.0)
>>plot(x, y, type = "s")
>>
>>And used Microsoft Paint to get it to how I wanted it to look, but I
>>want to
>>do it in R Studio completely.
>>
>><http://r.789695.n4.nabble.com/file/n4655792/plot.png>
>>
>>How can I replicate this image? Also, when do I use the window above
>>the
>>Console?
>>
>>Any incredibly easy tutorials out there to get me started?
>>
>>
>>
>>
>>--
>>View this message in context:
>>http://r.789695.n4.nabble.com/How-to-plot-this-simple-step-function-tp4655792.html
>>Sent from the R help mailing list archive at Nabble.com.
>>
>>______________________________________________
>>R-help at r-project.org mailing list
>>https://stat.ethz.ch/mailman/listinfo/r-help
>>http://www.R-project.org/posting-guide.html
>>and provide commented, minimal, self-contained, reproducible code.
>
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