Displaying 20 results from an estimated 10000 matches similar to: "mathematical expressions in main"
1998 Feb 23
1
R-beta: Help: cov.mve in R? dgamma in Splus?
Hi all
I have a couple of obscure questions for R/Splus experts (which
unfortunately isn't me!)
I am trying to compute Bayes Factors using some Splus code of Raftery
in Gilks et al (1996). Only problem is
1) R doesn't seem to have a robust covariance (cov.mve) which I
suspect I need rather than a non-robust classical estimate
2) Splus has cov.mve BUT dgamma in Splus doesn't have a
1998 May 08
0
R-beta: problems compiling R 0.61.2 on silicon graphics
Hi
Computing services here at QUT are trying to compile R0.61.2 for me on
a silicon graphics computer running IRIX Release 6.2 IP25 and gcc.
%gcc -v
Reading specs from /usr/gnu/lib/gcc-lib/mips-sgi-irix5.3/2.7.2.2/specs
gcc version 2.7.2.2
%perl -v
This is perl, version 5.004_04 built for irix
Basically, it was impossible for me even to get R configured although
under Linux RH4.2 and DEC ALPHA
2010 Jan 20
1
Greek letters on a multi-line plot title
I have an instance where I need to include Greek letters on a plot title that is multiple lines.
?
I've searched the forums for an approach to do this, but most of the previous posts and replies seem to just address instances of single line examples and problems:, e.g.
?
https://stat.ethz.ch/pipermail/r-help/1999-October/005096.html
?
I tried implementing those suggestions, e.g.
2012 Mar 27
2
Supperscript, subscript and double lines in the main/sub title and using greek letters
Dear R-help,
I am trying to express myself as best as I can here. If you also use Latex
to edit math reports or other languages with similar editing method,
you'll see what I'm talking about. My sincere appologies if my question is
not clear enough to some extend, as also I'm not able to provide my code
here because I don`t know which one I can use...
When editing the title in R
2008 Apr 02
1
Trouble combining plotmath, bquote, expressions
I'm using R-2.6.2 on Fedora Linux 9.
I've been experimenting with plotmath.
I wish it were easier to combine expressions in plotmath with values
from the R program itself. There are two parameters in the following
example, the mean "mymean" and standard deviation "mystd". I am able
to use bquote to write elements into the graph title like
mu = mymean
and R will
2009 Nov 20
3
symbol in the plot
a graph question. Thanks a lot in advance.
I made two scatterplots on one graph (sigma vs. delta1, sigma vs. delta2)
(20 observations of delta1, delta2 and corresponding sigma) the x-axis is
sigma, the y-axis is either delta1 or delta2. I connected both scatterplots.
To seperate them, one curves is a line with circles, the other curve is a
line with squares on it.
I want to make a notation
1997 Jul 04
0
R-beta: restart() in R
Hi
I just discovered R and it looks great under Windows NT4 or linux!
I now can't put off learning SPlus. Other than learning S/S+ I also
was hoping to use R for CODA a S+ MCMC diagnostics package. However, I
am thwarted by R not having a restart function (and I suspect maybe
other things too which I'm not aware of!).
Although I suspect it may not be trivial, has anyone looked at
1997 Oct 03
0
R-beta: linux: problem installing R-base-0.50.a4-1.i386.rpm
Hi
Sorry to bother list members with this query but I can't find any relavent
documentation.
I just installed R-base-0.50.a4-1.i386.rpm for redhat linux but am missing
a library file. rpm complained and so does R. When I try to run R I get
/usr/lib/R/bin/R.binary: can't load library 'libf2c.so.0'
What else do I need to install - i have g77 0.5.20 which works fine but
not f2c as
1999 Jul 19
0
AARNET mirror (Australia) of CRAN/R now available
Thanks to the efforts of Jason Andrade at AARNET and the CRAN people
there is now an Australian mirror of CRAN/R. The mirror will be
updated daily. It is
http://mirror.aarnet.edu.au/CRAN/
ftp://mirror.aarnet.edu.au/pub/CRAN/
To quote the web page
"R, also known as `GNU S', is a system for statistical computation and
graphics. It consists of a language plus a run-time environment with
2009 Oct 14
2
axis label
Hi all,
I want the y-axis label to be ( in symbols)
g(sigma given alpha)
where given is the conditional sign.
I've tried
ylab=expression(g(sigma|alpha)))
but it gave me
g(|(sigma,alpha))
where the sigma and alpha are in greek but the conditional sign is misplaced (before the bracket)
Any help would be appreciated.
Maram.
[[alternative HTML version deleted]]
1999 Feb 18
1
[Q] use of expression() in plot() vs. hist()
In plot() I can get greek symbols into text items without trouble.
However, some of the same commands don't work as I would expect with
hist(). See the example below.
> plot(1:10, 2:11, xlab=expression(paste("scaled", rho)))
---- works as expected, ie. prints the greek rho
> hist(c(0,0,0,0,4,5,6,6,6,8), xlab=expression(paste("scaled", rho)))
Error: Object
2010 Jun 05
2
Greek letters and formatted text
Hi,
I desperately try to do s.th. like
m=1.23455
sig=0.84321
plot(1,1)
text(0.8,1,sprintf("<Sigma>=%1.2f?%1.2f",m,sig))
where actually the greek letter should appear for Sigma.
I have tried all sorts of combinations with expression and paste etc. but could not work it out. Maybe someone has an idea and can help me.
Thanks a lot+
Thomas
2010 Jun 05
1
text with greek letters
Hi,
I am having troubles in putting greek letters and formatted text in a plot
m=1.43432
sig=0.124333
text(10.5,0.07,sprintf("<Sigma>=%1.2f±%1.2f",m,sig))
I would like to have the greek letter Sigma followed by the formatted numeric values of m and sig.
Does someone know a solution?
thanks a lot
Thomas
---------------------------------
Thomas Bschorr
Department of Physics
2007 Jul 23
2
persp and greek symbols in the axes labels
Hello,
I am plotting a 3D function using persp and I would like to use greek
symbols in the axes labels.
I have found examples like this one on the web:
plot(0,0,xlab=expression(kappa[lambda]),ylab=substitute(paste(phi,"=",true,sigma),list(true=5)))
this works well with plot but not with persp:
with the command
persp(M,theta = -20,phi =
2005 Mar 18
3
plotmath question
R listers:
I have been foiled by plotmath!
(in R 2.01,Windows 2000)
The task: Plot a normal density and label the ticks as mu - 3 sigma, mu - 2
sigma, ...., mu + 3 sigma, where the mu's and sigmas appear as Greek
symbols, of course.
The following code does this:
x<-seq(-3,to=3,by=.01)
y<-dnorm(x)
plot(x,y,type='h',col='lightblue',axes=FALSE)
2008 Apr 08
2
plotmath "overstrikes" in output on a Linux system
I've been testing plotmath. But I'm getting some funny output one one
computer. The problem is that characters are 'jumbled' and overstrike
when symbols are introduced.
Sample code:
mu <- 440.0
sigma <- 12.5
myx <- seq( mu - 4*sigma, mu+ 4*sigma, length.out=500)
myDensity <- dnorm(myx,mean=mu,sd=sigma)
# Here's one way to retrieve the values of mu and sigma and
2007 Oct 18
1
R-graphics printing greeks
I have tried to print a table of greek alphabet names and symbols
without success. I can print one character at a time but can't seem to
find a way to automate an entire list of the symbols. Some of the code I
have tried is below. I have searched on help, worked the examples in the
December 2002 R Help Desk article and plotmath but have not been able
to find a way to accomplish the
2009 Aug 11
1
Paste symbol and calculation in plot
I'm trying to annotate a density plot and I would like to have R calculate the
standard deviation and place it in the plot next to the standard deviation symbol
"sigma". I can successfully use the text command to paste "StDev =",round(sd(Data),digits=3))
on the plot. However, I have trouble when I want to replace "StDev" with the Greek
symbol sigma (See code
2010 Nov 25
1
Help in improving the style of R plots
Dear all,
I am running a MCMC on my data, and I want to plot the results of the
simulation. I want to dedicate a page in the PS file for each element in
my sample, and in each page I need to plot 8 quadrants.
In attachment you find my first attemp (just the first page). Here are
my troubles (I'm sorry if they are stupid, but I am a newby with R):
-) I need to substitute the greek letters
2003 May 21
1
inspect now available?
Dear All,
I am wondering if R now has a similar function to inspect in Splus? Someone post this question in 1999 and the answer was no, and I am wondering if this function has been developed in 2003?
Thanks for your attention.
**************************************************************************************
Steve Su (s.su@qut.edu.au)
PhD student.
School of Accountancy