Displaying 20 results from an estimated 10000 matches similar to: "web error message"
2001 Oct 18
1
rsync logging and permission problems
Dear rsync people,
I have just started using rsync for backups. I have had a couple of
issues. Note I'm trying to use rsync as user using ssh between two
machines both running Debian GNU/Linux potato (2.2r3). The local machine
is currently running 2.4.6-1 and the remote 2.3.2-1.2.
1) When I run rsync with the vv option, stuff scrolls of my screen faster
than I can read it. I was wondering if
2008 Apr 30
3
checking whether a file is empty
Hi,
Is there a way to check whether a file is empty in R. I did the customary
searches, but did not find anything. Please cc me on any reply.
Thanks, Faheem.
2001 Feb 07
1
Re: failed rpm installation of R 1.2-1 (fwd)
On Wed, 7 Feb 2001, Faheem Mitha wrote:
> Dear Albrecht,
>
> Just sent the following message out to r-help. Have you any idea what this
> problem could be?
>
> Sincerely, Faheem Mitha.
>
> ---------- Forwarded message ----------
> Date: Wed, 7 Feb 2001 00:04:35 -0500 (EST)
> From: Faheem Mitha <faheem at email.unc.edu>
> To:
2002 Jul 24
1
loading compiled C++ code as shared library
Dear People,
Over the last few days I've been writing C++ to compile as a shared
library (previously I have always used C). Not entirely to my surprise, I
am getting errors. Specifically, when I try to load the shared library, I
get
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
"/home/faheem/research/thesis/sim/ms/ms.so":
2001 Feb 24
5
testing for integer
Dear People,
Consider the following fragment of R code
choose <- function(n,r)
{
if( is.integer(n) && is.integer(r) && n > 0 && r >= 0 )
{
.C("choose",as.double(n),as.double(r),comb = double(1))$comb
}
else stop("n must be a positive integer and r a non-negative integer.")
}
This is a practice function (n choose r), which I
2011 Jun 26
2
does rsync not preserve directory mtimes?
Hi,
I'm running the following command as a local copy command.
faheem at bulldog:/mnt/data$ sudo rsync -abvz --super /data/ .
Origin directory
faheem at bulldog:/data$ ls -la
total 28
drwxr-xr-x 7 root root 4096 Jun 26 08:34 .
drwxr-xr-x 25 root root 4096 Apr 13 17:09 ..
drwxr-xr-x 2 owzar001 root 4096 Nov 6 2010 CTS
drwxr-xr-x 2 owzar001 owzar001 4096 Aug 27 2010
2001 Feb 08
4
eps file not positioned properly in latex document
Dear People,
I am trying to include a barplot (see code below), in a latex document.
However, the plot appears in totally the wrong position. I know this is
not an R question as such, but the eps file is produced by R and I thought
that perhaps other people had had similar problems and could give me
pointers. Am I doing anything obviously wrong?
Sincerely, Faheem Mitha.
PS.
2008 Aug 06
3
subsetting with column name as string
Hi,
Consider the following
> x = c(1,2)
> y = c(3,4)
> d = data.frame(cbind(x,y))
> d$x
[1] 1 2
> d$"x"
[1] 1 2
>
> foo = function(val)
+ {
+ return(d$val)
+ }
>
> bar = function()
+ {
+ return(d$"x")
+ }
>
> foo("x")
NULL
> bar()
[1] 1 2
I'm a little surprised that R accepts both the form d$x and d$"x", but
2003 Apr 29
4
thick plot lines
Dear People,
In a qqplot I am doing, I get lines/points that are very thick. I've tried
setting the lwd variable to 0.1, but it doesn't seem to have any effect.
Also, I have set the value of lty to dashed, but I still get dots. The
command looks like
qqplot(cdf.inv(seq(0,1,length=size),theta,pos,len),empmargdistvec(len,theta,pos,size),
xlim=c(-theta,theta), ylim=c(-theta,theta),
2001 Mar 13
1
passing arguments to R CMD SHLIB
Dear People,
I want to run gcc with optimisation turned on (-O2), and with -Wall (all
warnings) enabled, when using R CMD SHLIB. When I do make, which is
R CMD SHLIB -Wall -O2 cftp.c mcmc.c latticefn.c -lm
in this case, I get
faheem ~/research/cftp>make
R CMD SHLIB -Wall -O2 cftp.c mcmc.c latticefn.c -lm
make[1]: Entering directory `/home/faheem/research/cftp'
gcc -I/usr/lib/R/include
2001 Sep 23
1
plot with no tick marks
Dear R people,
I have the following simple bit of code to make a plot. I want to suppress
tick marks on the axes of the plot. I've been trying everything I can
think of to do so, but have been unsuccessful. Can you help me? If you
reply, please cc me, I'm not currently subscribed to the list.
Thanks in advance.
Sincerely, Faheem Mitha.
num <- 1:i
inc
2001 Mar 14
2
concatenating lists
Dear People,
I have been trying to perform concatenation operations on lists without
success. Consider the following example.
> x <- runif(2)
> y <- runif(2)
> z <- runif(2)
> xy <- list(x,y)
> xyz <- list(x,y,z)
I want to have a function foo such that foo(xy,z) is the same as xyz. This
appears not to be as easy as I thought, though there must be a way.
For example
1999 Dec 16
2
R question
I have the following question, which is elementary but I am unable to
answer.
In a for(i=10) loop, I am trying to represent the 10 1-dimensional vectors
l1, l2,... l10 by some expression that will run through these values.
ie. soppose I want to add l1 + ... + l10
I could go
x <- 0
for(i in 1:10){ x <- x+ l(i)}
This should return x to be the sum of the 10 li's for i from 1 to 10
2001 Nov 17
2
choosing g/g++ compiler executable in R CMD SHLIB
Dear People,
After considerable effort, I managed to install gcc-3.0 on my Debian
system. However, Debian keeps gcc-2.95 around as the default compiler, and
gcc, g++ point to the 2.95 version. The 3.0 versions need to be explicitly
invoked as gcc-3.0, g++-3.0 etc. How can I get R CMD SHLIB to invoke
gcc-3.0 instead of gcc and g++-3.0 instead of g++? I would like this to be
done by default but
2000 May 01
6
including r code in a latex file
Dear R people,
The header practically says it all. I was wanting to include r code in a
Latex file. Since R code using{ and }, which are interpreted by Latex as
control characters, I would expect it to get upset.
I believe that \{ would probably print as {, but I hoping I don't have to
go through the code and add lots of \. I would rather use some global
commannd, along the lines of
2003 Mar 16
1
R CMD SHLIB uses foo.c instead of foo.cc if both are present (PR#2644)
Full_Name: Faheem Mitha
Version: 1.6.2
OS: Debian GNU/Linux
Submission from: (NULL) (209.42.199.193)
Suppose you are making a shared library using
R CMD SHLIB foo.cc
If there is a file called foo.c in the same directory, then it will be used
instead.
faheem ~/scratch/r-base>R CMD SHLIB foo.cc
gcc-3.0 -I/usr/lib/R/include -D__NO_MATH_INLINES -mieee-fp -fPIC -g -O2
-c foo.c -o foo.o
2003 Jun 20
3
combining mathematical notation and value substitution
Dear People,
I need to make a label which both contains math notation as well as
substitutes a value for an object. In the following label, len and theta
are one dim variables, and I am substituting their values appropriately.
This label looks fine except that I want the greek symbol for theta to
appear instead of the word `theta'. How can I do so most easily? I don't
understand the
2002 Jun 15
2
using integrate on a function defined with if
Dear R People,
I getting some curious behaviour with the integrate function. Consider the
function
foo <- function(x)
{
if(x==0)
4
else
0
}
I get the error
> integrate(foo,0,1)
Error in integrate(foo, 0, 1) : evaluation of function gave a result of
wrong length
But now consider
foo <- function(x)
{
ifelse(x==0,4,0)
}
> integrate(foo,0,1)
0 with absolute error
2001 Feb 06
2
barplots with pictex
Dear R People,
I want to include a barplot corresponding to a simple discrete probability
distribution in a LaTeX document. I decided to use the pictex
driver. After a certain amount of messing about, I came up the stuff
below. It does not look too bad, however, there is one very obvious piece
of weirdness, ie. the y axis terminates at 0.1 and does not extend down
further. I tried to adjust this
2008 Mar 26
2
unix.time
Hi,
As far as I can tell, The R function unix.time calculates elapsed CPU
time. Is there a command within R to measure actual elapsed time (I think
this is sometimes referred to as wall time)?
For example, the time command from GNU time calculates the actual elapsed
time, as far as I can tell.
(Please CC me, I'm not subscribed.)