Displaying 20 results from an estimated 1000 matches similar to: "problem with attr()"
2001 Dec 20
1
optimizing R-1.4.0 build on Solaris; a show-and-tell storry
This is a little success story about the benefits of changing
the defaults in config.site when I was building R-1.4.0 for Solaris
(on a Sun Sparc that I'm currently using).
For previous versions of R, I had just used the default config.site and
not given it any thought. Since the Sun machine that I'm using
is not getting any faster, I decided I would give config.site a look
when building
2001 Nov 26
2
R not giving memory back to system?
This might be because I didn't get it right, but; I thought R would
release memory back to the system as (big) objects get removed?
Here is my platform (with 1Gb of RAM):
platform sparc-sun-solaris2.8
arch sparc
os solaris2.8
system sparc, solaris2.8
status
major 1
minor 3.1
year 2001
month 08
day 31
language R
A little example:
Start a new section of R, with
2000 Jun 22
1
'pausing' in R
I have this 'odd' problem; I need to let R pause, for a given time, before
starting next iteration in a loop. I'm using the following to do this
task, but feel a little bit guilty because I'm using as much CPU time as I
can get while pausing:
while(keepGoing) {
t.end <- proc.time()[3] + 5 ## the time this loop should end at
[block of R commands]
while(proc.time()[3]
2002 Sep 18
1
problem with make fullcheck on Sparc Solaris 8
I have been trying out R-1.6.0 tarballs (2002-9-10 and 2002-9-17) on:
arch sparc
os solaris2.8
system sparc, solaris2.8
status beta
major 1
minor 6.0
year 2002
month 09
day 17
language R
As you see form above, R-1.6.0 compiles fine and works. However, when I
"make fullcheck" I get the following error:
running code in 'tools-Ex.R' ... OK
2002 Sep 20
0
problem with make on sparc solaris 8 ( R-1.6.0beta_2002-09-18.tar.gz)
This is something that I have not seen in earlier beta versions of 1.6.0:
.
.
.
ts.plot text html latex example
ts.union text html latex example
tsSmooth text html latex
tsdiag text html latex example
R_LIBS= ../../../bin/R CMD INSTALL
ERROR: no packages
2000 Jun 22
1
Summary: 'pausing' in R (fwd)
The question was:
> I have this 'odd' problem; I need to let R pause, for a given time, before
> starting next iteration in a loop. I'm using the following to do this
> task, but feel a little bit guilty because I'm using as much CPU time as I
> can get while pausing:
>
> while(keepGoing) {
> t.end <- proc.time()[3] + 5 ## the time this loop should end
2004 Apr 14
2
attaching data.frame/list within a function
I'm trying to find a good way of attaching a list within a function such
that the attached variables (the list's members) precede the global
environment (.GlobalEnv) in the search list. Here is a non-working example
using attach(), which hopefully explains better what I'm trying to do:
> foo <- function(x=0, input=list(a=10)) {
+ attach(input)
+ on.exit(detach(input))
+
2003 Oct 28
1
'levelplot' with an option 'at'
Hi all,
I encountered a difference between versions 1.6.1 and 1.7.0 when using
levelplot with an option 'at'. Here are the specs of the two platforms
used:
> R.version
_
platform sparc-sun-solaris2.8
arch sparc
os solaris2.8
system sparc, solaris2.8
status
major 1
minor 6.1
year 2002
month 11
day 01
language R
> R.version
_
platform
2002 Sep 10
9
R 1.6.0 beta
R 1.6.0 has gone into final feature freeze as of today.
As a new feature, we'll make interim beta versions available via
ftp://cran.us.r-project.org/pub/R/src/base
alias
http://cran.us.r-project.org/src/base
(filename R-1.6.0beta_*.tar.gz, where * is the creation date).
If you want to help ensure that the final 1.6.0 works satisfactorily
on *your* platform, it might be a good idea to
2003 Aug 24
1
regression constraints (again)
Im trying to do regressions with constraints that the weights
are all >=0 and sum(weights) = 1. I've read the archive and have
set the problem up with solve.QP and just the non-negativity constraints
along the lines of:
y as the data vector
X as the design matrix
D <- t(X) %*% X
d <- t(t(y) %*% X)
A <- diag(ncol(X))
b <- rep(0,ncol(X))
fit <-
2007 Apr 24
1
Matrix: how to re-use the symbolic Cholesky factorization?
I have been playing around with sparse matrices in the Matrix
package, in particularly with the Cholesky factorization of matrices
of class dsCMatrix. And BTW, what a fantastic package.
My problem is that I have to carry out repeated Cholesky
factorization of a spares symmetric matrices, say Q_1, Q_2, ...,Q_n,
where the Q's have the same non-zero pattern. I know in this case one
does
2001 Nov 20
0
Summary: non-negative least squares
Thank you Brian Ripley, Gardar Johannesson, and Marcel Wolbers for your
prompt
and friendly help! I will share any further learnings as I move through
these suggestions. -Bob Abugov
Brian Ripley wrote:
I just use optim() on the sum of squares with non-negativity constraints.
That did not exist in 1999.
Gardar Johannesson wrote:
You can always just use the quadratic programing library in R
2003 Nov 08
1
notation for skewness and kurtosis
Hello everybody,
this is a bit off topic, so maybe you can just reply to me personally...
What is the typical notation for 'skewness', 'kurtosis' and maybe 'excess
kurtosis'?
Thank you,
Martina
--------------------------------------------------------------------------
Department of Statistics Office Phone: (614) 292-1567
1958 Neil Avenue, 304E Cockins Hall
2004 Feb 16
1
2 bwplots - different colors
Hi all,
I would like to draw one picture which would show two different types of
boxplots using the same axes (kind of on top of each other). However, I
would like to plot each boxplot using a different color or different
shading inside the box, so they could be better distinquished from each
other... Could you help me?
Here is an example of the plot I have so far. I was only able to change
the
2005 Jan 04
2
x11 is not available
Dear list,
I have problems installing R-2.0.1 on SUSE Linux 9.2. I used the
following commands in order install R in
/usr/local
./configure --with x11 --with-readline
make
make install
When starting R and trying to display a plot on the X-window system
output is written to a postscript file. When I try to run x11 with
>x11()
Error in X11(): X11 is not available.
I do have a running
2003 Oct 16
1
Improving efficiency in "outer"-like calculation
Hello,
I am doing mcmc=10000 simulations from a posterior distribution of the parameters
of a mixture of K=6 normal densities.
I have mcmc by K matrices simMeans, simVars and simWeights containing
the simulation output: one row for each simulation, one column for
each normal component of the mixture.
One thing I would like to do is a plot of the posterior predictive
density. In order to do that
2001 Jun 01
1
Installing Rstreams lib
Dear R-helpers,
I am trying to install Rstreams library on the following platform:
----------------------------
platform alphaev67-dec-osf5.0
arch alphaev67
os osf5.0
system alphaev67, osf5.0
status
major 1
minor 2.3
year 2001
month 04
day 26
language R
---------------------------
Unfortunately, I get these error messages:
---------------------------
> [557] R
2011 Mar 10
1
Problems with upscmd ACCESS-DENIED
I'm trying to execute some commands on my ups, but I keep getting ERR
ACCESS-DENIED
upscmd -l sinus
Instant commands supported on UPS [sinus]:
beeper.toggle - Toggle the UPS beeper
load.off - Turn off the load immediately
load.on - Turn on the load immediately
shutdown.return - Turn off the load and return when power is back
shutdown.stayoff - Turn off the load and remain off
shutdown.stop -
2003 Jun 14
2
A sapply() funny.
The sapply function is refusing to return a result for what seem to
me to be mysterious reasons. Here is a toy example:
set.seed(111)
X <- list(x=runif(20),y=runif(20))
rvec <- seq(0.01,0.15,length=42)
foo <- function(x,X,cc) {
mean((X$x)^x + (X$y)^cc)
}
bar <- function(x,a,b){a+b*x}
try.b <- sapply(rvec,bar,a=1,b=2) # This runs without a problem and
2007 Feb 12
1
bug in partial matching of attribute names
There looks to be a bug in do_attr() (src/main/attrib.c): incorrect
partial matches of attribute names can be returned when there are an odd
number of partial matches.
E.g.:
> x <- c(a=1,b=2)
> attr(x, "abcdef") <- 99
> attr(x, "ab")
[1] 99
> attr(x, "abc") <- 100
> attr(x, "ab") # correctly returns NULL because of ambig