Displaying 20 results from an estimated 5000 matches similar to: "Off topic -- when is max min = min max?"
2008 Nov 09
1
attr.all.equal() and all.equal(attributes(), attributes())
Dear All!
If I try to compare the attributes of two
objects, I find a surprising behaviour of
attr.all.equal(). With identical attributes I
receive the answert NULL. If the attributes
differ, the answer is as expecxted and differences are shown.
all.equal(attributes(), attributes()) instead
returns TRUE, if attributes are equal.
See example:
v <- 1:5
attr(v, 'testattribute')
2003 Feb 03
0
(Off topic.) Game theory.
This has nothing to do with R as such; I'm simply trying to exploit
the vast resource of knowledge and expertise that resides in the R
community.
For my sins, I am teaching a course on Game Theory this term. Game
Theory I know from ***nothing***. I am trying to learn the subject
as I go along, staying perhaps half a step in front of the students.
I am having considerable difficulty with
2004 Mar 26
1
(Off topic) Text on General Linear Model.
A student (at another university) has contacted me for advice about a
good text dealing with the general linear model (which she needs to
know about for her thesis defense).
[One might say that if she used the GLM in her thesis she ***ought***
to know about the concept already, but ought to and does are very
different, so ne'er mind.]
The lady is an engineering student so I guess she'd
2005 Sep 22
0
(Off topic) Limit question solved.
A colleague here at U.N.B. has provided a counter example for me. So
the conjecture (that the existance of the ``product limit'' is
implied by the existance of the limits involving the first three
powers) is false.
If anyone is interested in the details, they should contact me
off-list.
My apologies for confusing everyone with my initial mis-statement of
the problem.
cheers,
2006 May 17
3
Off topic --- help in locating a source.
Apologies for the off-topic question; as usual I'm trying to draw
upon the unparalleled knowledge and sagacity of the r-help list.
Please reply off-list if you can help me out.
A collaborator of mine found a formula we need, on sheets which he had
photocopied out of a book, some years ago. He cannot remember which
book (he's getting to be as senile and forgetful as I am, poor
bloke!).
2004 Sep 15
2
Slightly off-topic --- distribution name.
I've built R functions to ``effect'' a particular distribution, and
would like to find out if that distribution is already ``known'' by
an existing name. (I.e. suppose it were called the ``Melvin''
distribution --- I've built dmelvin, pmelvin, qmelvin, and rmelvin as
it were, but I need a real name to substitute for melvin.)
The distribution is really just a toy
2011 Sep 26
0
Off topic -- A BAD idea. Was: Boxplot BUT with Mean, SD, Max & Min ?
>
> > On the original question though, why isn't there something "off the
> shelf"
> > that will do what I want? Surely, a "boxplot" using mean, SD, max and
> min
> > would be a common enough need to justify it?
> >
>
> Gabor Grothendieck replied:
> tarr is not a list or a data frame. Use.data.frame(tarr) so that it
> uses
2002 Apr 04
1
PR#1132.
Just now I again had occasion to want nested describe lists in a
documentation file. I found that the bug which I reported on 18
October, 2001 still persists. I checked on the bug report at the R
web page, and found that the notes say ``Not a problem in R 1.4.0
(2001-12-08)''.
Well, it's still a problem for me --- using R 1.4.1.
(Details:
platform sparc-sun-solaris2.7
arch
2002 Jun 26
0
Tenure track statistics position at UNB.
The Department of Mathematics and Statistics at the University of New
Brunswick, Fredericton, N. B., Canada, is advertizing a tenure track
position in Statistics, starting 1 July 2003. Please see
http://www.math.unb.ca/job-stat.html
for details.
cheers,
Rolf Turner
rolf at math.unb
[My apologies to those who receive multiple copies of this email.]
2003 Sep 22
1
Updating a linear model
My google search for Plackett's Algorithm didn't return too much except that
Plackett's algorithm appears to be useful in Control Theory - it is
elaborated as "Plackett's algorithm for on-line recursive least squares
estimation". Sounds something like what I want.
I am looking at developing a user modelling type app (new data points coming
in and wanting to dynamically
2003 Nov 15
0
FW: computing a p-value ...
Thanks to Rolph Turner and Jason Turner ...
I guess I was too excited about getting back on the list after an absense of
several years ... I'll be a little more thoughtful about the problem before
posting next time, and a little less trigger-happy with the "Send" e-mail
button.
Never-the-less, much appreciated.
- Mohamed
-----Original Message-----
From: Rolf Turner
2004 May 25
0
(OT) Fourier coefficients.
This posting has nothing to do with R (except maybe that I am using R
very heavily in writing the paper to which the question pertains.) I
simply wish to draw upon the impressive knowledge and wisdom of the R
community.
Since this question is way off topic, if anybody has the urge to
reply, they should probably email me directly:
rolf at math.unb.ca
rather than via this list.
My question
2018 Feb 02
1
R-gui sessions end when executing C-code
Hi
I'm trying to develop some C code to find the fixpoint of a contraction mapping, the code compiles and gives the right results when executed in R.
However R-gui session is frequently terminated. I'm suspecting some access violation error due to the exception code 0xc0000005
In the error report windows 10 gives me.
It is the first time I'm writing any C-code so I'm guessing I
A log on Bayesian statistics, stochastic cost frontier, montecarl o markov chains, bayesian P-values
2004 Feb 17
0
A log on Bayesian statistics, stochastic cost frontier, montecarl o markov chains, bayesian P-values
Dear friends,
Over the past weeks, I have been asking a lot of questions about how to
use R in Bayesian analysis. I am brand new to R, but I am very pleased with
it. I started with winbugs but I found winbugs to be a limited software, not
bad but has several limitations. By contrast, R allows the analyst to tackle
any problem with a huge set of tools for any kind of analysis. I love R. In
2006 May 29
2
newbie question: ROW average
Dimitris Rizopoulos wrote:
> look at ?rowMeans; you can also use "apply(mat, 1, mean)" but
> rowMeans() is better.
By my reading of the question, this is not what
Ezhil wants. He said:
``I have a 992 x 74 matrix. I would like to form a new matrix
by averaging each 4 rows from the original one.''
I.e. he wants (I think) the first row of the new matrix
to be the
2007 Apr 24
1
regarding 3d Bar Plot --- correction.
I mis-spoke. It seems I had two collections of functions in the same
directory. One by Colin Goodall, and one by David Scott (I have no
record of where he is/was located). It is the *latter* collection
that does all its work from within Fortran.
I'll have another look at what Colin Goodall actually wrote to see if
it could be useful to guarav.
cheers,
Rolf Turner
rolf at
2007 Feb 19
1
Documenting options specific to a package.
If one specifies new options in a package, using the options()
function, where does/should one document these new options?
E.g. suppose that I put the line
options(melvin=42)
in a file zzz.R in the R directory of the package source, where the
package contains functions foo(), bar(), clyde(), and irving() which
all query options("melvin") and take some action based on the value
of
2011 Nov 03
2
Problem with R CMD check and the inconsolata font business.
I have just installed R version 2.14.0 and tried to re-build and
re-check some
of the packages that I maintain.
I'm getting a warning (in the process of running R CMD check on my "deldir"
package):
> * checking PDF version of manual ... WARNING
> LaTeX errors when creating PDF version.
> This typically indicates Rd problems.
> LaTeX errors found:
> ! Font
2002 Sep 03
2
Version 1.5.1 failing make check.
I just tried to install R version 1.5.1, and it is failing
``make check'', as follows:
$ make check
`Makedeps' is up to date.
running code in 'base-Ex.R' ...*** Error code 1
make: Fatal error: Command failed for target `base-Ex.Rout'
Current working directory /home1/faculty/rolf/Traal/Rtmp/R-1.5.1/tests/Examples
*** Error code 1
make: Fatal error: Command failed for target
2006 Apr 27
1
Symbol __f95_sign not found.
Our computing services people have recently reconfigured the Sun
compilers structure on our network, and I can no longer install, on
our Sun/Solaris machine, a certain package (spatstat) with which I am
heavily involved. (The same problem may well pertain to other
packages as well; I haven't yet experimented except with spatstat.)
Strictly speaking I can ***install*** it, but when I try
to