R help - Jan 2013 - two lines in axis title combined with 'substitute' command

Hello,

I want to have the x-axis title of my plot in 2 lines, centered:

experiment 1:
log2(Ratio H/L)

I know that in principle that works with '\n'. However, I am also using
the 'substitute' command for my axis title. However, it does not make a
new line.

What I have so far:

logbase <- 2
test <- "bait"
cellline <- "cellline"

plot(
log(filteredproteins[["Ratio.H.L.normalized.UW21_FW"]],base=logbase),
-log(filteredproteins[["Ratio.H.L.normalized.UW21_REV"]],base=logbase),
main= substitute("bait = "* bait *" in "*cellline,
list(bait=bait, cellline=cellline)),
xlab = substitute(
log[logbase]*
("Ratio H"/"L forward")*
italic("\n experiment 1"),
list(logbase=logbase)
),
ylab = substitute(
log[logbase]*
("Ratio L"/"H reverse")*
italic("\n experiment 2"),
list(logbase=logbase)
),
col="lightblue",
bg="black",
pch=16
)

Thanks for your help!
Nina



The Radboud University Nijmegen Medical Centre is listed in the Commercial
Register of the Chamber of Commerce under file number 41055629.


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On 03.01.2013 15:00, N.Hubner at ncmls.ru.nl wrote:
> Hello,
>
> I want to have the x-axis title of my plot in 2 lines, centered:
>
> experiment 1:
> log2(Ratio H/L)
>
> I know that in principle that works with '\n'. However, I am also
using the 'substitute' command for my axis title. However, it does not
make a new line.
You cannot. One way out is to use two calls to title(xlab=...., 
line=...), one for each line of the xlab title.

Best,
Uwe Ligges

>
> What I have so far:
>
> logbase <- 2
> test <- "bait"
> cellline <- "cellline"
>
> plot(
>
log(filteredproteins[["Ratio.H.L.normalized.UW21_FW"]],base=logbase),
>
-log(filteredproteins[["Ratio.H.L.normalized.UW21_REV"]],base=logbase),
> main= substitute("bait = "* bait *" in "*cellline,
list(bait=bait, cellline=cellline)),
> xlab = substitute(
> log[logbase]*
> ("Ratio H"/"L forward")*
> italic("\n experiment 1"),
> list(logbase=logbase)
> ),
> ylab = substitute(
> log[logbase]*
> ("Ratio L"/"H reverse")*
> italic("\n experiment 2"),
> list(logbase=logbase)
> ),
> col="lightblue",
> bg="black",
> pch=16
> )
>
> Thanks for your help!
> Nina
>
>
>
> The Radboud University Nijmegen Medical Centre is listed in the Commercial
Register of the Chamber of Commerce under file number 41055629.
>
>
> 	[[alternative HTML version deleted]]
>
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