R help - Jul 2012 - how to add a variable to a graph title

Hi folks,

To simplify my question, consider an example:

x=runif(1,0,1)
plot(1:5,1:5)

Now I want to add a title to the above plot showing the vaue of x, so if the
generated x is 0.3, graphically the tile should be like "Figure 1:
x=0.3".
How do I achieve this in R?

Thanks.
Jeff


--
View this message in context:
http://r.789695.n4.nabble.com/how-to-add-a-variable-to-a-graph-title-tp4636364.html
Sent from the R help mailing list archive at Nabble.com.

plot(1:5, main = paste0("Figure 1: x=", x))

Michael

On Jul 12, 2012, at 3:30 PM, JeffND <Zuofeng.Shang.5 at nd.edu> wrote:
> Hi folks,
> 
> To simplify my question, consider an example:
> 
> x=runif(1,0,1)
> plot(1:5,1:5)
> 
> Now I want to add a title to the above plot showing the vaue of x, so if
the
> generated x is 0.3, graphically the tile should be like "Figure 1:
x=0.3".
> How do I achieve this in R?
> 
> Thanks.
> Jeff
> 
> 
> --
> View this message in context:
http://r.789695.n4.nabble.com/how-to-add-a-variable-to-a-graph-title-tp4636364.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
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Thank you for this useful code!

--
View this message in context:
http://r.789695.n4.nabble.com/how-to-add-a-variable-to-a-graph-title-tp4636364p4636405.html
Sent from the R help mailing list archive at Nabble.com.

To use variables in mathematical expressions, bquote can be used:

#Term in in .( ) is evaluated
plot(1:10,main=bquote(frac(alpha,.(2+2))))


-- 
GnuPG Key: 0x7340821E