R help - Jun 2009 - conditional coloring of output text in console or in GUI

Hello,

On 6/30/09, Christopher W. Ryan <cryan at binghamton.edu>
wrote:
> suppose I have some logical vector
>
>  x <- as.logical(c(0,0,0,1,0,0,1,1,0))
>  x
>
>  How would I make the words TRUE appear on the screen in a different
>  color from the words FALSE?
>
I believe xterm256 would help with this, and perhaps highlight [1].
Liviu

[1] http://r-forge.r-project.org/projects/highlight/

suppose I have some logical vector

x <- as.logical(c(0,0,0,1,0,0,1,1,0))
x

How would I make the words TRUE appear on the screen in a different
color from the words FALSE?

Thanks.

--Chris
-- 
Christopher W. Ryan, MD
SUNY Upstate Medical University Clinical Campus at Binghamton
40 Arch Street, Johnson City, NY  13790
cryanatbinghamtondotedu

"If you want to build a ship, don't drum up the men to gather wood,
divide the work and give orders. Instead, teach them to yearn for the
vast and endless sea."  [Antoine de St. Exupery]

Christopher W. Ryan <cryan <at> binghamton.edu> writes:
> 
> suppose I have some logical vector
> 
> x <- as.logical(c(0,0,0,1,0,0,1,1,0))
> x
> 
> How would I make the words TRUE appear on the screen in a different
> color from the words FALSE?
> 
> Thanks.
> 
> --Chris
# install.packages("xterm256")
library(xterm256)

cat(style(x, fg=c(0,0,0,1,0,0,1,1,0)))

HIH

Paolo

Hi,

You might want to check package xterm256.
http://cran.r-project.org/web/packages/xterm256/index.html
http://romainfrancois.blog.free.fr/index.php?post/2009/04/18/Colorful-terminal%3A-the-R-package-%22xterm256%22

This works if the terminal you are using recognizes xterm escape 
sequences as defined in this page.
http://frexx.de/xterm-256-notes/

It would be possible for other gui to support these escape sequences.

Romain


On 06/30/2009 08:28 PM, Christopher W. Ryan wrote:
> suppose I have some logical vector
>
> x<- as.logical(c(0,0,0,1,0,0,1,1,0))
> x
>
> How would I make the words TRUE appear on the screen in a different
> color from the words FALSE?
>
> Thanks.
>
> --Chris

-- 
Romain Francois
Independent R Consultant
+33(0) 6 28 91 30 30
http://romainfrancois.blog.free.fr

Christopher W. Ryan wrote:
> suppose I have some logical vector
>
> x <- as.logical(c(0,0,0,1,0,0,1,1,0))
> x
>
> How would I make the words TRUE appear on the screen in a different
> color from the words FALSE?
>
>   
tfsample<-as.logical(sample(c(0:1),10,TRUE))
plot(1:10,type="n")
text(1:10,1:10,tfsample,col=ifelse(tfsample,"red","blue"))

Jim