R help - Jan 2016 - different coloured axis title labels for different axes

Consider a simple plot of X vs Y.  There are elements on the plot that 
represent X, or Y, that are presented in different colours (say, blue 
for X,   red for Y). Rather than use a legend, I would like to have the 
title label for the X-axis be in blue, and the title label for the 
Y-axis be in red.

While it is trivial to change the color of the axis title labels for 
*both* axes at the same time, I haven't figured out how to trick thing 
into generating a blue title label for the X-axis, and a red title label 
for the Y- axis (i.e., different colours on different axes).

I'm sure this is out there on searchable pages, but, I haven't managed 
to stumble across the appropriate search phrase(s).

Pointers to the obvious solution welcomed in advance.


Cheers....

	[[alternative HTML version deleted]]

How about this:

plot(0,0,xlab='',ylab='')
mtext(side=1,line=3,text='x axis',col=4)
mtext(side=2,line=3,text='y axis',col=2)

-Dan

On Mon, Jan 11, 2016 at 7:44 AM, Evan Cooch <evan.cooch at gmail.com>
wrote:
> Consider a simple plot of X vs Y.  There are elements on the plot that
> represent X, or Y, that are presented in different colours (say, blue
> for X,   red for Y). Rather than use a legend, I would like to have the
> title label for the X-axis be in blue, and the title label for the
> Y-axis be in red.
>
> While it is trivial to change the color of the axis title labels for
> *both* axes at the same time, I haven't figured out how to trick thing
> into generating a blue title label for the X-axis, and a red title label
> for the Y- axis (i.e., different colours on different axes).
>
> I'm sure this is out there on searchable pages, but, I haven't
managed
> to stumble across the appropriate search phrase(s).
>
> Pointers to the obvious solution welcomed in advance.
>
>
> Cheers....
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>


-- 
Dan Dalthorp, PhD
USGS Forest and Rangeland Ecosystem Science Center
Forest Sciences Lab, Rm 189
3200 SW Jefferson Way
Corvallis, OR 97331
ph: 541-750-0953
ddalthorp at usgs.gov

	[[alternative HTML version deleted]]

> On Jan 11, 2016, at 7:44 AM, Evan Cooch <evan.cooch at gmail.com>
wrote:
> 
> Consider a simple plot of X vs Y.  There are elements on the plot that 
> represent X, or Y, that are presented in different colours (say, blue 
> for X,   red for Y). Rather than use a legend, I would like to have the 
> title label for the X-axis be in blue, and the title label for the 
> Y-axis be in red.
> 
> While it is trivial to change the color of the axis title labels for 
> *both* axes at the same time, I haven't figured out how to trick thing 
> into generating a blue title label for the X-axis, and a red title label 
> for the Y- axis (i.e., different colours on different axes).
> 
> I'm sure this is out there on searchable pages, but, I haven't
managed
> to stumble across the appropriate search phrase(s).
Suppress the 'label' production for both x-axis and y-axis
"titles" (by assigning them to "") and then use the `title`
function (twice) to separately construct your colored labels. I had difficulty
learning that the term "label" in hte plot-function documentation
referred only to the single valued axis title and not to the multiple numeric or
text axis annotations at the tick marks. The word "lable" is used to
refer to both sets of values..
> 
> Pointers to the obvious solution welcomed in advance.
> 
> 
> Cheers....
> 
> 	[[alternative HTML version deleted]]
Plain text.
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
David Winsemius
Alameda, CA, USA

The following shows how to get different colors for most features of a
scatterplot:

plot(1:11,log(1:11),ann=FALSE,axes=FALSE,col="pink",pch=16)
box(col="gray")
title(xlab="X Axis Label", col.lab="light blue")
title(ylab="Y Axis Label", col.lab="light green")
axis(side=1, at=c(2,3,5,7,11), lab=as.expression(lapply(1:5,
function(i)bquote(pi[.(i)]))), col.axis="red", col="orange")
axis(side=2, at=log(c(2,3,5,7,11)), lab=as.expression(lapply(1:5,
function(i)bquote(lambda[.(i)]))), col.axis="blue",
col="green")
title(main="Main Title", col.main="magenta",
sub="(subtitle)",
col.sub="yellow")

See help(par) for details.  The 'cex' and 'font' parameters have
same
subtypes as 'col'.




Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Mon, Jan 11, 2016 at 7:44 AM, Evan Cooch <evan.cooch at gmail.com>
wrote:
> Consider a simple plot of X vs Y.  There are elements on the plot that
> represent X, or Y, that are presented in different colours (say, blue
> for X,   red for Y). Rather than use a legend, I would like to have the
> title label for the X-axis be in blue, and the title label for the
> Y-axis be in red.
>
> While it is trivial to change the color of the axis title labels for
> *both* axes at the same time, I haven't figured out how to trick thing
> into generating a blue title label for the X-axis, and a red title label
> for the Y- axis (i.e., different colours on different axes).
>
> I'm sure this is out there on searchable pages, but, I haven't
managed
> to stumble across the appropriate search phrase(s).
>
> Pointers to the obvious solution welcomed in advance.
>
>
> Cheers....
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>
	[[alternative HTML version deleted]]

On 1/11/2016 1:54 PM, William Dunlap wrote:
> The following shows how to get different colors for most features of a
> scatterplot:
>
> plot(1:11,log(1:11),ann=FALSE,axes=FALSE,col="pink",pch=16)
> box(col="gray")
> title(xlab="X Axis Label", col.lab="light blue")
> title(ylab="Y Axis Label", col.lab="light green")
> axis(side=1, at=c(2,3,5,7,11), lab=as.expression(lapply(1:5,
> function(i)bquote(pi[.(i)]))), col.axis="red",
col="orange")
> axis(side=2, at=log(c(2,3,5,7,11)), lab=as.expression(lapply(1:5,
> function(i)bquote(lambda[.(i)]))), col.axis="blue",
col="green")
> title(main="Main Title", col.main="magenta",
sub="(subtitle)",
> col.sub="yellow")
>
> See help(par) for details.  The 'cex' and 'font' parameters
have same
> subtypes as 'col'.
>
>
>

Thanks -- very helpful.