Re: [R] expressions and paste
Emily Baldock wrote:
I am trying to get a subscript into the title.
My expression is quote(bold(apoA[bold(1)]))
I have managed to get something near to what I want with
sd2 -1.882
measure - g/L
direction - increase
chem - quote(bold(apoA[bold(1)]))
plot(0,0)
titletxt - substitute(paste(per , sd2, ,measure, , direction, \n in usual
,chem),
list(chem = chem,sd2=sd2,measure=measure,direction=direction))
title(main=titletxt,cex.main=1.4,font.main=2)
You don't need paste(), and so we get:
sd2 -1.882
measure - g/L
direction - increase
plot(0,0)
titletxt - substitute(bold(per * sd2 * measure * *
direction * in usual * apoA[1]),
list(sd2 = as.character(sd2), measure = measure,
direction = direction))
title(main=titletxt,cex.main=1.4,font.main=2)
Uwe Ligges
However, I can't get bold text this way.
Emily.
On 11 Nov 2004 at 12:58, Roger D. Peng wrote:
Can you be a bit more specific? Exactly what kind of symbol are you
trying to put in the title?
-roger
Emily Baldock wrote:
I have written a function to plot data which will be used for various different
chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual, chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an expression
then obviously it won't work.
I have experimented with various things and I am at a complete loss for how to
insert an expression into the middle of
a title. If the expression was going in directly I would use main=expression(paste(text
, expression, text)) but
again this doesn't work. Can anyone help? thanks Emily.
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Re: [R] expressions and paste
The existence of bold function in base R library is a news for me!
I think that you have to read something about plotmath function (with
it you can write
latex-like expressions).
Best.
A.S.
Alessandro Semeria
Models and Simulations Laboratory
Montecatini Environmental Research Center (Edison Group),
Via Ciro Menotti 48,
48023 Marina di Ravenna (RA), Italy
Tel. +39 544 536811
Fax. +39 544 538663
E-mail: [EMAIL PROTECTED]
Emily Baldock [EMAIL PROTECTED]
Sent by: [EMAIL PROTECTED]
12/11/2004 12.26
Please respond to emily.baldock
To: Roger D. Peng [EMAIL PROTECTED]
cc: [EMAIL PROTECTED]
Subject:Re: [R] expressions and paste
I am trying to get a subscript into the title.
My expression is quote(bold(apoA[bold(1)]))
I have managed to get something near to what I want with
sd2 -1.882
measure - g/L
direction - increase
chem - quote(bold(apoA[bold(1)]))
plot(0,0)
titletxt - substitute(paste(per , sd2, ,measure, , direction,
\n in usual ,chem),
list(chem = chem,sd2=sd2,measure=measure,direction=direction))
title(main=titletxt,cex.main=1.4,font.main=2)
However, I can't get bold text this way.
Emily.
On 11 Nov 2004 at 12:58, Roger D. Peng wrote:
Can you be a bit more specific? Exactly what kind of symbol are you
trying to put in the title?
-roger
Emily Baldock wrote:
I have written a function to plot data which will be used for various
different chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual,
chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an
expression then obviously it won't work.
I have experimented with various things and I am at a complete loss
for how to insert an expression into the middle of
a title. If the expression was going in directly I would use
main=expression(paste(text , expression, text)) but
again this doesn't work. Can anyone help? thanks Emily.
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Re: [R] expressions and paste
Emily, are you right your code work, but this one maybe work better for you : sd2 -1.882 measure - (g/L) direction - increase chem - quote(apoA[bold(1)]) plot(0,0) titletxt - substitute(paste(bold(per) , , bold(sd2), ,bold(measure), , bold(direction), ,,bold(in usual ),bold(chem)),list(chem = chem,sd2=sd2,measure=measure,direction=direction)) title(main=titletxt) Is not elegant but it work! Best regard A.S. Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: [EMAIL PROTECTED] Emily Baldock [EMAIL PROTECTED] 12/11/2004 13.04 Please respond to emily.baldock To: [EMAIL PROTECTED] cc: Subject:Re: [R] expressions and paste I am using the plotmath function and have read a lot about it! If you run my code, you will find that it works, the problem isn't with creating the expression, but with including it in the title - the chemistry part of the title is bold, it is the rest of the title I want to get bold. Emily. On 12 Nov 2004 at 13:12, [EMAIL PROTECTED] wrote: The existence of bold function in base R library is a news for me! I think that you have to read something about plotmath function (with it you can write latex-like expressions). Best. A.S. Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: [EMAIL PROTECTED] [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] expressions and paste
I have written a function to plot data which will be used for various different
chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual, chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an expression
then obviously it won't work.
I have experimented with various things and I am at a complete loss for how to
insert an expression into the middle of
a title.
If the expression was going in directly I would use main=expression(paste(text
, expression, text)) but again this
doesn't work.
Can anyone help?
thanks
Emily.
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Re: [R] expressions and paste
On Thu, 11 Nov 2004, Emily Baldock wrote:
I have written a function to plot data which will be used for various different
chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual, chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an expression
then obviously it won't work.
I have experimented with various things and I am at a complete loss for how to
insert an expression into the middle of
a title.
With
sd2-10
measure-quote(mu*g*m^{-3})
chem-quote(H[2]*SO[4])
You can use
plot(1,1,main=bquote(per *.(sd2)*.(measure)* in usual *.(chem)))
or
plot(1,1,main=substitute(per *sd2*measure* in usual *chem,
list(sd2=sd2,measure=measure,chem=chem)) )
You don't get the newlines, someone else will have to work this out.
-thomas
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Re: [R] expressions and paste
Can you be a bit more specific? Exactly what kind of symbol are you
trying to put in the title?
-roger
Emily Baldock wrote:
I have written a function to plot data which will be used for various different chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual, chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an expression then obviously it won't work.
I have experimented with various things and I am at a complete loss for how to insert an expression into the middle of
a title.
If the expression was going in directly I would use main=expression(paste(text , expression, text)) but again this
doesn't work.
Can anyone help?
thanks
Emily.
__
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http://www.biostat.jhsph.edu/~rpeng/
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Re: [R] expressions and paste
Hi
Thomas Lumley wrote:
On Thu, 11 Nov 2004, Emily Baldock wrote:
I have written a function to plot data which will be used for various
different chemistries.
A simplified version is:
plot_data - function(risk,levels,chem,sd2,measure){
plot(risk, levels,main=paste (per, sd2, measure, \n in usual, chem))
}
The problem is with the title.
This works fine if the variable chem is just text, but if it is an
expression then obviously it won't work.
I have experimented with various things and I am at a complete loss
for how to insert an expression into the middle of
a title.
With
sd2-10
measure-quote(mu*g*m^{-3})
chem-quote(H[2]*SO[4])
You can use
plot(1,1,main=bquote(per *.(sd2)*.(measure)* in usual *.(chem)))
or
plot(1,1,main=substitute(per *sd2*measure* in usual *chem,
list(sd2=sd2,measure=measure,chem=chem)) )
You don't get the newlines, someone else will have to work this out.
Expressions (for plotting text) don't handle newlines. A workaround
would be to do the title by hand by calling mtext to place two
separate expressions on separate lines. Something like ...
sd2-10
measure-quote(mu*g*m^{-3})
chem-quote(H[2]*SO[4])
plot_data - function(risk,levels,chem,sd2,measure){
plot(1,1)
mtext(substitute(per *sd2*measure,
list(sd2=sd2,measure=measure)),
side=3, line=2)
mtext(substitute(in usual *chem,
list(chem=chem)),
side=3, line=1)
}
plot_data(1, 2, chem, sd2, measure)
Paul
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Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392
[EMAIL PROTECTED]
http://www.stat.auckland.ac.nz/~paul/
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