Displaying 20 results from an estimated 28 matches for "litteratur".
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litterature
2003 Dec 04
4
regression with limited range response
Dear R experts
How can you perform a regression analysis in R when the dependent
variable is countiuous but bounded, say between 0 and 100?
I would be grateful for pointers to R-functions but also for hints to
relavant litterature since I have never worked with this problem before.
Thanks in advance.
Kim Mouridsen.
[[alternative HTML version deleted]]
2009 Mar 29
3
[LLVMdev] GSoC 2009 application
...the SSI sigma
> instruction defines multiple variables, whereas the SSA form instructions
> can only define a single value (in fact, LLVM's Instruction class is an
> indirect subclass of the Value class), and this assumption is ingrained in
> LLVM.
While it is not described in the litterature, I don't think you need
to introduce a new
function:
x0 = ...
x1, x2 = \sigma (x0)
|
+----+------+
| |
v v
... = x1 ... = x2
Can be transformed to:
x0 = ...
|
+-------+------+
| |
v...
2009 Mar 29
0
[LLVMdev] GSoC 2009 application
On Sun, Mar 29, 2009 at 3:33 PM, Benoit Boissinot
<bboissin+llvm at gmail.com> wrote:
> While it is not described in the litterature, I don't think you need
> to introduce a new
> function:
> x0 = ...
> x1, x2 = \sigma (x0)
> |
> +----+------+
> | |
> v v
> ... = x1 ... = x2
>
> Can be transformed to:
>
> x0 = ...
> |...
2012 Jun 27
1
Make a reference?
How can I make a reference i this case? I want to make a reference to
'Artikel XXX'
For example
In The Artikel 'XXXX' there is two tables.
..
Litterature
Artikel XXX
--
View this message in context: http://r.789695.n4.nabble.com/Make-a-reference-tp4634611.html
Sent from the R help mailing list archive at Nabble.com.
2006 Oct 04
0
[OT] Survival and Function as co-primary endpoints in clinical trials. How to simulate in R ?
...is biased in defavor of
the drug improving survival (keeping alive patients
with poor function)
and in favor of the placebo group (those who
survive have better function)
The questions: 1-Would some one please suggest litterature where this is
discussed or examples of similar situations
2- I would like to simulate the process in R ie generate
survival (exponential for a start although Weibull may be
be more appropriate) data with several drug effects on
survival...
2009 Nov 26
1
How shall one present LRT test statistic in a scientific journal ?
...r field of
evolutionary biology) and that I should present instead the LR statistic
together with the corresponding Chi^2 statistic since the likelihood ratio
is almost distributed like a Chi2 (df1-df2), and then write down the p-value
corresponding to this value of Chi.
I looked up in the current litterature but cannot really find a proper
answer to that dilmena.
So, dear evolutionary biologists R users, how would you present it ?
Thank you very much,
Julien.
--
View this message in context: http://old.nabble.com/How-shall-one-present-LRT-test-statistic-in-a-scientific-journal---tp26532480p26532480...
1999 Dec 01
1
density(kernel = "cosine") .. the `wrong cosine' ..
...rature will most probably
assume that a "cosine" kernel means the one in the literature,
*NOT* the one we have in R now.
Proposition / Possibilities / RFC [= Request For Comments] :
- We CHANGE the behavior of density(* , kernel="cosine")
to use the cosine from the litterature.
- provide the current "cosine" as kernel = "smoothcosine"
{I'd like to keep the possibility of 1-initial-letter abbreviation}
Enhancement (easy, I'll do that):
- We further provide both
Epanechnikov and "quartic" aka "biweight" additi...
2006 Aug 30
1
lmer applied to a wellknown (?) example
...era I tried (yes, tried) to understand mixed models by
working through the 'rat example' in Sokal and Rohlfs Biometry (2000)
3ed p 288-292. The same example was later used by Crawley (2002) in his
Statistical Computing p 363-373 and I have seen the same data being used
elsewhere in the litterature.
Because this example is so thoroughly described, I thought it would be
very interesting to analyse it also using lmer and to see how the
different approaches and outputs differs - from the more or less manual
old-school (?) approach in Sokal, aov in Crawley, and to mixed models by
lmer.
In...
2017 May 31
2
stats::line() does not produce correct Tukey line when n mod 6 is 2 or 3
Le 31/05/2017 ? 17:30, Serguei Sokol a ?crit :
>
> More thorough reading revealed that I have overlooked this phrase in the
> line's doc: "left and right /thirds/ of the data" (emphasis is mine).
Oops. I have read the first ref returned by google and it happened to be
tibco's doc, not the R's one. The layout is very similar hence my mistake.
The latter does not
2009 Mar 29
1
[LLVMdev] GSoC 2009 application
On Mon, Mar 30, 2009 at 1:05 AM, Eli Friedman <eli.friedman at gmail.com> wrote:
> On Sun, Mar 29, 2009 at 3:33 PM, Benoit Boissinot
> <bboissin+llvm at gmail.com> wrote:
>> While it is not described in the litterature, I don't think you need
>> to introduce a new
>> function:
>> x0 = ...
>> x1, x2 = \sigma (x0)
>> |
>> +----+------+
>> | |
>> v v
>> ... = x1 ... = x2
>>
>> Can be transformed to:...
2017 May 31
0
stats::line() does not produce correct Tukey line when n mod 6 is 2 or 3
...> form MMline(). The slope is the same but not the intercept.
> What are the exact terms for intercept calculation that should be implemented?
> Serguei.
Sorry Serguei, I have new version of line.c since yesterday,
and will not be disturbed anymore.
Note that I *did* give the litterature, and it seems most
discussants don't have paper books in physical libraries anymore;
In this case, interestingly, you need one of those I think -
almost everything I found online did not have the exact details.
Peter Dalgaard definitely was right that Tukey did not use
quantiles at all, and n...
2003 Sep 26
1
a. crossing branches with hclust, b. plot.dendrogram
Hello,
a. when I use hclust with the methods media, centroid, and mcquitty,
and plot the results, the dendrograms have lines that are crossing each
other. Is this ok?
b. My next question refers to plot.dendrogram: How can I use parameters
as "hang" or "cex" here? E.g. for
st <- as.dendrogram(subtreeshc[[x]])
I would like to have something like this, where cex and hang
2004 Jan 16
0
anova repeated measure interpretation
...e effect due to individual subject,
the factor condition has no effect (F: 1.7119).
and that the factor stimulus has a strong effect (F:20.3986).
But what are the additional lines
(I have inserted the question marks at the end of these lines),
which are not present in the examples found in the
litterature (Baron, puzzle example) ?
They seem to appear when the both involved factors have more than 2 levels.
Consequently, I am not sure
about the rightness and the interpretation of this model.
I will really appreciate your help.
--
Robert Espesser
Laboratoire Parole et Langage UMR 6057, CNRS
29 A...
2004 Nov 30
0
[BOOK] VoIP Telephony with Asterisk
...pen source PBX" but IMHO
it's more like "a collection of howtos with rather confusing examples".
It has about zero structure and doesn't really help you understand how
asterisk works.
I don't really recommend this book unless you're desperately craving for
some * litterature...
Cheers,
Jean-Michel.
2011 Aug 30
0
multi-response regression with random forest
...I don't understand what is precisely modeled in such multi-response
regressions with random forest, when I used the predict() function on my
data I obtained only one value for each sample. What correspond to this
prediction? F1, F2, some combination of the both?
Any advice and links to helpful litterature would be appreciated,
Thanks,
C?dric
___________________________________________________________________
Here is a small extract of my input data :
ID F1 F2 WQ1 WQ2 WQ3 WQ4
423007 -0.181720936 -0.031683254 Impaired Impaired Impaired Impaired
423432 -...
2005 Sep 13
4
plot(<lm>): new behavior in R-2.2.0 alpha
As some of you R-devel readers may know, the plot() method for
"lm" objects is based in large parts on contributions by John
Maindonald, subsequently "massaged" by me and other R-core
members.
In the statistics litterature on applied regression, people have
had diverse oppinions on what (and how many!) plots should be
used for goodness-of-fit / residual diagnostics, and to my
knowledge most people have agreed to want to see one (or more)
version of a Tukey-Anscombe plot {Residuals ~ Fitted} and a QQ
normal plot.
An...
2001 Dec 05
2
(Meta-analysis) How to build|fake a [n]lm[e] object ?
Dear all,
I recently had to review the current litterature about some medical treatment
with two possible variants (let's call them A and B). I collected all available
prospective randomized trials about this treatment : I got four trials for the
A variant and three for the B variant, all studies comparing one variant to a
"suitably choosen"...
2004 Dec 26
2
Un peu d'aide
Bonjour,
Je voudrais faire un petit programme sous R dans
lequel je ferais intervenir des parametres que
j'initialiserais dans R directement ou dans un fichier
txt(des naturels, reels et caracteres). N'auriez vous
pas des programmes deja fait qui reprennent ces
techniques?
De plus, je voudrais pouvoir travailler avec la
distribution exp (rexp) de parametres: moyenne=1 et
variance=1.
2009 Mar 29
0
[LLVMdev] GSoC 2009 application
2009/3/27 Andre Tavares <andrelct at dcc.ufmg.br>
> I'm a Computer Science master student at UFMG, Brasil. I'm interested in
> taking part on Google Summer of Codes 2009. My idea is not on the LLVM list,
> but I have written a project description to make my intentions clear. My
> project is attached as a pdf file.
By changing LLVM IR from SSA to SSI, you propose to
2009 Mar 27
2
[LLVMdev] GSoC 2009 application
Dear LLVM Community,
I'm a Computer Science master student at UFMG, Brasil. I'm interested in
taking part on Google Summer of Codes 2009. My idea is not on the LLVM
list, but I have written a project description to make my intentions
clear. My project is attached as a pdf file.
Regards,
--
Andre Tavares
Master Student in Computer Science - UFMG - Brasil
http://dcc.ufmg.br/~andrelct