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Aleš Žiberna

2004-Oct-27 13:34 UTC

[R] ploting axes and rotating strings

Hello!

I have two question that rose from trying to tacle the same problem in two 
differnet ways.

What I want to do is to plot axes (only values or labels, no tick marks) in 
such a way that 'cex' can be very small, text can be perpendicular to
the
axis (as in axis(las=2) ) and the text is stil at the right position.

Let me demonstrate with a small example:
plot(0:100/100,0:100/100,axes=FALSE)
axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1)

The text on the axis should be at the same points as tick marks, but it is 
shifted right.
I tried to bypas the problem by using function 'text', which puts the
text
at the correct positions, however, it has another problem. I would like to 
rotate the text, but if I use 'str=90' (to rotate the text for 90
degrees),
I get a warning massage:
Warning message:
parameter "str" couldn't be set in high-level plot() function

This suprises me, since if I read the help correctly ('?par'), then this
should not happen.

So if anyone can either hepl me to rotate the text in 'text' or to
correctly
plot the text in 'axis', I would be very grateful.

Ales

Marc Schwartz

2004-Oct-27 14:29 UTC

head link

[R] ploting axes and rotating strings

On Wed, 2004-10-27 at 08:34, Ale?? ??iberna wrote:> Hello!
> 
> I have two question that rose from trying to tacle the same problem in two 
> differnet ways.
> 
> What I want to do is to plot axes (only values or labels, no tick marks) in
> such a way that 'cex' can be very small, text can be perpendicular
to the
> axis (as in axis(las=2) ) and the text is stil at the right position.
> 
> Let me demonstrate with a small example:
> plot(0:100/100,0:100/100,axes=FALSE)
> axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1)
> 
> The text on the axis should be at the same points as tick marks, but it is 
> shifted right.
> I tried to bypas the problem by using function 'text', which puts
the text
> at the correct positions, however, it has another problem. I would like to 
> rotate the text, but if I use 'str=90' (to rotate the text for 90
degrees),
> I get a warning massage:
> Warning message:
> parameter "str" couldn't be set in high-level plot() function
> 
> This suprises me, since if I read the help correctly ('?par'), then
this
> should not happen.
> 
> So if anyone can either hepl me to rotate the text in 'text' or to
correctly
> plot the text in 'axis', I would be very grateful.
> 
> Ales
I am not able to replicate the right-shift of the text labels. It may be
a visual screen artifact of the small font size you are using. If you
increase the cex.axis to 0.25 (for example), it becomes clear that the
labels are in the proper position.

I put up a PDF containing the plot at:

www.MedAnalytics.com/Rplots.pdf

I used the following code:

pdf()
plot(0:100/100, 0:100/100, axes = FALSE)
axis(side = 3, at = 0:100/100, labels = 0:100, las = 2, cex.axis = 0.1)
axis(side = 1, at = 0:100/100, labels = 0:100, las = 2, cex.axis = 0.25)
dev.off()

I'll leave that up for a bit for review. I presume that you have the
Acrobat Reader under Windows?

Relative to the use of text() for rotating axis labels, see:

http://cran.r-project.org/doc/FAQ/R-FAQ.html#How-can-I-create-rotated-axis-labels_003f

HTH,

Marc Schwartz

partha_bagchi@hgsi.com

2004-Oct-27 14:36 UTC

head link

[R] ploting axes and rotating strings

Have you tried the adj parameter in par as in 

axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1, adj = 0.5)

?







Ales Ziberna <ales.ziberna at guest.arnes.si>
Sent by: r-help-bounces at stat.math.ethz.ch
10/27/2004 09:34 AM

 
        To:     "R-help" <r-help at stat.math.ethz.ch>
        cc: 
        Subject:        [R] ploting axes and rotating strings


Hello!

I have two question that rose from trying to tacle the same problem in two
differnet ways.

What I want to do is to plot axes (only values or labels, no tick marks) 
in
such a way that 'cex' can be very small, text can be perpendicular to
the
axis (as in axis(las=2) ) and the text is stil at the right position.

Let me demonstrate with a small example:
plot(0:100/100,0:100/100,axes=FALSE)
axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1)

The text on the axis should be at the same points as tick marks, but it is
shifted right.
I tried to bypas the problem by using function 'text', which puts the
text
at the correct positions, however, it has another problem. I would like to
rotate the text, but if I use 'str=90' (to rotate the text for 90 
degrees),
I get a warning massage:
Warning message:
parameter "str" couldn't be set in high-level plot() function

This suprises me, since if I read the help correctly ('?par'), then this
should not happen.

So if anyone can either hepl me to rotate the text in 'text' or to 
correctly
plot the text in 'axis', I would be very grateful.

Ales

______________________________________________
R-help at stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Ian Smith

2004-Oct-27 15:18 UTC

head link

[R] ploting axes and rotating strings

Hi Ales, 

Think you might have made a typo, the parameter in par is "srt" not
"str",
hope that helps.

Regards,
Ian Smith

mangosolutions
Tel +44 118 902 6620
Fax +44 118 902 6401


-----Original Message-----
From: r-help-bounces@stat.math.ethz.ch
[mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Ale¹ ®iberna
Sent: 27 October 2004 14:35
To: R-help
Subject: [R] ploting axes and rotating strings

Hello!

I have two question that rose from trying to tacle the same problem in two 
differnet ways.

What I want to do is to plot axes (only values or labels, no tick marks) in 
such a way that 'cex' can be very small, text can be perpendicular to
the
axis (as in axis(las=2) ) and the text is stil at the right position.

Let me demonstrate with a small example:
plot(0:100/100,0:100/100,axes=FALSE)
axis(side=3,at=0:100/100,labels=0:100,las=2,cex.axis=0.1)

The text on the axis should be at the same points as tick marks, but it is 
shifted right.
I tried to bypas the problem by using function 'text', which puts the
text
at the correct positions, however, it has another problem. I would like to 
rotate the text, but if I use 'str=90' (to rotate the text for 90
degrees),
I get a warning massage:
Warning message:
parameter "str" couldn't be set in high-level plot() function

This suprises me, since if I read the help correctly ('?par'), then this
should not happen.

So if anyone can either hepl me to rotate the text in 'text' or to
correctly

plot the text in 'axis', I would be very grateful.

Ales

______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html


	[[alternative HTML version deleted]]

Aleš Žiberna

2004-Oct-28 08:59 UTC

head link

[R] ploting axes and rotating strings

RE: [R] ploting axes and rotating stringsThanks to everybody for useful 
sugestions!

Ales

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