Gustave Lefou wrote:
Thank to both of you.
I found an interesting document by Uwe Ligges in Rnews December 2002 (Vol
2/3)
The following seems encouraging
x=seq(1,180,by=1)
beta=10
eta=5
plot(x,log(x),type="p",xlab="x",ylab="h(x)",main=substitute("Failure rate "
* eta==myeta * "," * beta ,list(myeta=eta,mybeta=beta)) )
but then it fails :
x=seq(1,180,by=1)
beta=10
eta=5
plot(x,log(x),type="p",xlab="x",ylab="h(x)",main=substitute("Failure rate
from W(" * eta==myeta * "," * beta==mybeta , ")"
,list(myeta=eta,mybeta=beta)) )
Any idea ?
Yes, Uwe's idea is that you need to provide valid S expressions, and it
is invalid to do more than one comparison (e.g. using "==") in a row:
R> 1 == 2 == 3
Error: unexpected '==' in "1 == 2 =="
but you may do:
R> {1 == 2} == 3
[1] FALSE
which is nonsense but at least valid.
So let us make it valid for your code as well:
plot(x, log(x), type="p", xlab="x", ylab="h(x)",
main = substitute("Failure rate from W(" * {eta == myeta} *
"," * {beta == mybeta} * ")",
list(myeta = eta, mybeta = beta)))
Uwe Ligges
Thank you very much
2008/5/9 Henrique Dallazuanna <[EMAIL PROTECTED]>:
Try this:
plot(x, log(x),
xlab = "x", ylab = "h(x)",
main = bquote(Failure~rate~from~W(eta == .(eta), beta == .(beta)))
On Fri, May 9, 2008 at 11:31 AM, Gustave Lefou <[EMAIL PROTECTED]>
wrote:
Hello,
I have to do a few graphics of the same function and this function is
parametrized by two arguments.
What I would like is to be able to change the value of these two arguments
without changing the plot command. So as to copy paste.
I tried the following :
x=1:100
eta=10
beta=5
plot(x,h(x),xlab="x",ylab="h(x)",main=substitute( expression(
paste("Failure
rate from",W(eta==myeta,beta==mybeta) ) ) ,list(myeta=eta,mybeta=beta) )
)
But it doesn't work. It's written "expression ( Failure rate from
W(eta=10,)
..." on the plot with eta as a greek letter.
Thank you very much !
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--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
