Displaying 20 results from an estimated 5000 matches similar to: "Re: [R] Is k equivalent to k:k ?"
2004 Dec 08
4
Is k equivalent to k:k ?
Bringing up an old topic on a small technicality.
In the help documentation on seq.
Value:
The result is of 'mode' '"integer"' if 'from' is (numerically
equal to an) integer and 'by' is not specified.
The arguement in seq specifying length also creates "double" which is not obvious in the wording, as "by" is not specified
2004 Dec 08
4
Is k equivalent to k:k ?
Bringing up an old topic on a small technicality.
In the help documentation on seq.
Value:
The result is of 'mode' '"integer"' if 'from' is (numerically
equal to an) integer and 'by' is not specified.
The arguement in seq specifying length also creates "double" which is not obvious in the wording, as "by" is not specified
2004 Dec 06
2
Which FM should beginners R? A suggestion.
We've recently had a thread on beginners and FAQs and the like.
I decided that it might be a good idea to offer a short list of
on-line help pages that beginners should read. Goals:
- the list short be short (I think mine is too long)
- many of the commonest questions should find answers there (fairish)
- I should have found the pages helpful myself (no question about that)
- it's a
2003 Sep 19
4
3D plotting in R
A student is trying to cluster some data. Tree-building things seem to
be pretty hopeless (we've tried most of the ones in R, I think).
Multi-dimensional scaling produces somewhat tantalising results:
things do clump together somewhat, but the clusters overlap a lot.
I was wondering if these was an artefact of squeezing it down to 2D,
and whether 3D might be better. So
loc <-
2003 Sep 04
3
Overlaying graphs
----- Original Message -----
From: "Richard A. O'Keefe" <ok at cs.otago.ac.nz>
To: <paul at datavore.com>
Sent: Thursday, September 04, 2003 2:56 AM
Subject: Re: [R] Overlaying graphs
> I do not know how to overlay the curve graphic on top of hist graphic.
>
> Do you know about the "add=TRUE" option for plot()?
>
> I am hoping to show visually
2017 Aug 25
2
ovirt-engine package for oVirt 4.1.x
On Fri, Aug 25, 2017 at 04:54:54PM +0200, Sandro Bonazzola wrote:
> 2017-08-13 13:50 GMT+02:00 C. L. Martinez <carlopmart at gmail.com>:
>
> > Hi all,
> >
> > I am trying to install oVirt 4.1.x from centos repos but it seems
> > ovirt-engine doesn't exists. But instead, ovirt-hosted-engine-setup
> > exists?
> >
> > Is ovirt-engine
2003 Jun 23
7
How can I do a spinning plot in R?
I have found XLispStat's spinning plots illuminating.
I'd like to do the same thing in R.
A dozen or so probes with help, help.search, apropos
haven't turned up anything, and I've even resorted to
grepping through the entire R source distribution
looking for 'spin.*plot', to no avail.
Either the feature is called something else in R (what?),
or it's in some other
2003 Oct 16
3
indexing a particular element in a list of vectors
I have a "list" of character vectors. I'm trying to see if there is a way
(in a single line, without a loop) to pull out the first element of all the
vectors contained in the list.
listOfVectors[1:length(listOfVectors][1]
doesn't work.
==========================
If you want more details..
Here is my listOfVectors which is called "uuu"
>
2006 Oct 04
2
Linear model with hidden variables
I have some data on a moving vehicle where, amongst other things,
it looks as though it would be informative to fit a model with the
following structure:
Z = B.Y + errorz
Y = C.X + errorz
The X variables are observed predictor variables;
6 of the variables look promising (on the basis of what they mean).
The Z variables are observed response variables;
there are 4 of them.
There is a
2007 Oct 17
1
Problem with assert_difference
Hello Friends,
I have problem with assert_difference, I want its syntax and
explantion in detail, Please help me, plz give me solution.
Regards,
Kiran Polawar
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2012 Jun 02
1
igraph and igraph0
Could someone tell me the difference between igraph and igraph0?
I searched the CRAN web site, but cannot find an explantion of the differences.
Thanks, Alan
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2004 Apr 08
1
R on MacOS X
I just got a G4 running MacOS 10.3 today, so I immediately downloaded
R from CRAN. To my disappointment, it insists on installing in a fixed
place and requires a root password to do so. University policy is that
if your machine is on the net, you WON'T get root access nohow, unless
you're a designated sysadmin, which I'm not. Is there any alternative
to downloading a source
2001 Dec 13
2
k-means with euclidian distance but no coordinates
Hi,
I'm trying to build a thesaurus that will sensible values for rare words.
I suspect the best algorithm to use is k-means although I'm not sure about
that -- I would have preferred a k dimensional space with a binary cluster
in each dimension so a word can belong to 0..k clusters, but I digress...
I can measure the strength of correlation between words fairly easily by
counting
2003 Jul 15
2
R, geochemistry, ternary diagrams
I'm in e-mail contact with a geochemist who maintains a well regarded
geochemistry web site. He's drawing diagrams either with a Turbo Pascal
program running in a DOS window or with Excel. I'm trying to persuade
him that R would be a better choice. Something he's particularly keen
on is ternary diagrams. I think he is talking about ternary phase
diagrams, and if so, it looks as
2004 Mar 09
1
More factor names in x axis, how?
I have some data which records, amongst other things,
age (recoded by me to be in months), and
drug group (a factor).
The drug group is a 2 digit number,
but there is no numeric relationship, and only 50 of the possible
groups occur
So
> asd <- read.table("asd.dat", header=TRUE)
> asd$group <- as.factor(asd$group)
> plot(age ~ group, data=asd)
gives me a series of
2004 Mar 20
9
Operating on windows of data
I have a data set that is comprised of, for simplicity, a vector of numbers that I want to march across in overlapping windows of say 10 values each, computing a couple of values for each window. Is there a vectorized way to do this, or do I truly need to resort to looping--I think so? Any other clever thoughts?
Thanks,
Sean
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2003 Dec 14
5
reverse lexicographic order
Hi all,
I have some email addresses that I would like to sort in reverse
lexicographic order so that addresses from the same domain will be
grouped together. How might that be done?
Murray
--
Dr Murray Jorgensen http://www.stats.waikato.ac.nz/Staff/maj.html
Department of Statistics, University of Waikato, Hamilton, New Zealand
Email: maj at waikato.ac.nz
2004 Nov 22
1
Installing rgl in R2.0.1
I'm running R2.0.1 under Solaris 2.9 on a SunBlade 100.
When I installed it, I set things up to use the Sun compilers
cc, CC, f95 with the options recommended in the installation and
administration guide.
Until today, no worries.
With all this discussion about R GUIs I thought I'd give R Commander a go.
The web page said to install a bunch of packages first, so I did
>
2009 Sep 26
1
Compatibility of external C code across platforms
A package I have written makes considerable use of external C code. There appear to be no problems building a Windows binary with the GNU C compiler, but now I would like to make the package available for other platforms. A stringent check of the code with the gcc options '-Wall -pedantic' flags many nested functions and variable-length arrays that are not allowed in ISO C. Is it
2010 Jul 08
1
New R-SIG for Discrete Choice Modelling
Hello all,
I'd like to announce the availability of a mailing list for a
newly-formed SIG (Special Interest Group) dedicated to using R for
Discrete Choice Modelling.
This list is intended for discussion of issues revolving around the
design and analysis of Discrete Choice (aka Stated Choice, Stated
Preference or Choice-Based Conjoint) experiments.
While R has good infrastructure for