R help - Jun 2012 - Median line with stripchart

Dear all, 

I would like to ask if it possible to draw a median line in a Stripchart,
either using the built-in STRIPCHART function or with another package.  

I was expecting stripchart() to work more or less like boxplot(), but I
couldn't find an easy way to draw a mean or median line, neither I found
this option in other packages.

Could somebody help?

Best regards,

 

Luigi Marongiu, MSc

 


	[[alternative HTML version deleted]]

On 13.06.2012 17:57, Luigi wrote:
> Dear all,
>
> I would like to ask if it possible to draw a median line in a Stripchart,
> either using the built-in STRIPCHART function or with another package.
>
> I was expecting stripchart() to work more or less like boxplot(), but I
> couldn't find an easy way to draw a mean or median line, neither I
found
> this option in other packages.
>
> Could somebody help?
???

What about:

x <- rnorm(100)
stripchart(x)
abline(v=median(x))


Uwe Ligges


>
> Best regards,
>
>
>
> Luigi Marongiu, MSc
>
>
>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

It would help if you would give us a copy of at least part of the data you
are using and show us what you have tried so far. This is a simple example.
In this case the median is for the entire data set not for a single group.
But you really didn't give us enough information. 

x <- rnorm(75)
g <- rep(1:3, 25)
stripchart(x~g)
abline(v=median(x), lty=2)

----------------------------------------------
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77843-4352

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Luigi
> Sent: Wednesday, June 13, 2012 10:57 AM
> To: r-help at r-project.org
> Subject: [R] Median line with stripchart
> 
> Dear all,
> 
> I would like to ask if it possible to draw a median line in a
> Stripchart,
> either using the built-in STRIPCHART function or with another package.
> 
> I was expecting stripchart() to work more or less like boxplot(), but I
> couldn't find an easy way to draw a mean or median line, neither I
> found
> this option in other packages.
> 
> Could somebody help?
> 
> Best regards,
> 
> 
> 
> Luigi Marongiu, MSc
> 
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.