Displaying 20 results from an estimated 34 matches for "lcy".
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2009 Feb 07
3
Re-post data format question (apologies)
Hello all,
I have a *.csv file that looks like this (actual file is orders of magnitude
larger):
Site taxa no.ind
forest LMA 1
forest LCY 1
forest SCO 1
meadow LMA 2
meadow LCY 1
meadow PNT 3
I am interested in, but have failed to create, code that efficiently
converts it to a site-by-taxa matrix or data fra...
2001 Apr 05
2
CI for wilcoxon test (PR#895)
Full_Name: Marketa Kylouskova
Version: 1.2.1
OS: Windows
Submission from: (NULL) (147.231.7.2)
Hi,
I believe there is a bug in the extension of wilcox.test, namely in
determination of confidence intervals. I concentrated on the two-sample test
only. I examined and tested its performance on this working data set:
x<-rnorm(10,3,1) # So I have two samples, I will test whether
2005 Dec 06
3
Coefficient of association for 2x2 contingency tables
Hi,
Found no measure of association or correlation for 2x2 contingency tables in
fullrefman.pdf or google. Can someone point to a package that implements such
calculations?
Thanx.
--
Alexandre Santos Aguiar
- consultoria para pesquisa em sa??de -
R Botucatu, 591 cj 81
tel 11-9320-2046
fax 11-5549-8760
www.spsconsultoria.com
2005 Aug 26
1
Help in Compliling user -defined functions in Rpart
I have been trying to write my own user defined function in Rpart.I
imitated the anova splitting rule which is given as an example.In the
work I am doing ,I am calculating the concentration index(ci) ,which
is in between -1 and +1.So my deviance is given by
abs(ci)*(1-abs(ci)).Now when I run rpart incorporating this user
defined function i get the following error message:
Error in
2010 Sep 24
3
Odds ratio from Logistic model in R
Hi, I am new to R. Anyone can explain the following from R-help or
anyone can direct me how to calculate odds ratio from logistic model in
R. Thank you very much. Guoya
Stefano <stecalza at tiscalinet.it
<https://stat.ethz.ch/mailman/listinfo/r-help> > writes:
>Hi all.
>
>A simple question.
>Is there a function to compute the Odds Ratio and its confidence
intervall,
2011 Oct 13
0
xyplot() and confidence interval polygons
Dear all,
I'm trying to replicate the panel function behaviour that Deepayan and
others discuss here:
https://stat.ethz.ch/pipermail/r-help/2007-April/130779.html
and Oscar Lamigueiro refers to here and provides sample code for:
http://www.r-bloggers.com/confidence-bands-with-lattice-and-r/
where a polygon is generated around lines on panels to display the
confidence interval bounds for
2011 Apr 06
1
metaplot
Dear all,
I have a four variable: Stuy.Name, OR, 95%LCI and 95%UCI and I would like to
create a meta analysis plot. I can't use meta.MH function in metaplot
because I do not have
n.trt, n.ctrl, col.trt, col.ctrl are not available! Is there an alternative
way to do it?
Many thanks in advance,
Cheba
[[alternative HTML version deleted]]
2014 Sep 08
3
problema con los cambios de marcas temporales en el eje X
Muchísimas gracias Carlos, de verdad que te agradezco la ayuda, pero no es lo que voy buscando. Quiero colocar en el eje de abscisas la secuencia temporal de los meses, es decir, agosto septiembre, octubre, etc? pero no las fechas de las toma de datos, sino que aparezca la marca de un mes, y la siguiente marca sea la del siguiente mes, etc?, y además que las muestras estén separadas de acuerdo con
2002 Nov 03
1
Ansari-Bradley test (PR#2252)
Full_Name: Wei Xu
Version: 1.5.1
OS: WindowsME
Submission from: (NULL) (63.215.238.92)
The P-value for a two.sided test is not consistent with the confidence
interval.
For example, P-value=0.1372, but the 95% CI doesn't include the H0 value(1).
> x
[1] 0.80 0.83 1.89 1.04 1.45 1.38 1.91 1.64 0.73 1.46
> y
[1] 1.15 0.88 0.90 0.74 1.21
>
2014 Sep 08
2
problema con los cambios de marcas temporales en el eje X
Muchas gracias Carlos, previo a mi correo, entre las pruebas que hice estaba una parecida a la que apuntas de la siguiente manera:
attach (Libro1)
plot (xbar~as.Date(fechas,"%d/%m/%y"), ylim=c(400,660), xaxt="n", type="b", pch=19,cex=1)
xlabels<-strptime(fecha,format="%d/%m/%Y")
axis.Date (1,at=xlabels,format="%b-%y")
2000 Oct 19
2
Multiple outputs of a function
Hello everybody,
I'm writting some functions for experimental designs. The one I'm
working on is similar to "fac.design" on Splus.
The problem I have is with the form of the output :
When the argument fraction is submitted, Splus gives something like :
A B C
1 - - -
2 + + -
3 + - +
4 - + +
Fraction : ~A:B:C
The first part of this output is the
2014 Sep 08
3
problema con los cambios de marcas temporales en el eje X
Hola de nuevo, acabo de encontrar la solución. He creado una variable ficticia con los días 1 de cada mes en la secuencia temporal que quería y después he actuado de la siguiente manera
attach(Libro1)
plot (xbar~as.Date(fecha,"%d/%m/%y"), type="b", pch=19,cex=2,xaxt="n")
xlabels<-strptime(ofeje, format = "%d/%m/%y")
axis.Date(1,
2014 Sep 07
3
problema con los cambios de marcas temporales en el eje X
Estimada Comunidad, solicito vuestra ayuda en un tema quizás un poco tonto, pero no logro dar con la tecla.
Estoy intentando hacer una gráfica de la evolución temporal de una variable (xbar) a lo largo del tiempo.
La secuencia que he hecho es la siguiente:
attach(Libro1)
plot (xbar~as.Date(fechas,"%d/%m/%y"), ylim=c(400,650), type="b", pch=19,cex=1)
2001 Mar 05
1
Odds Ratio from Logistic Model
Hi all.
A simple question.
Is there a function to compute the Odds Ratio and its confidence intervall, from a logistic model (glm(.......,family=binomial....). I've written my own, but certainly someone did a better job.
Thank you in advance,
Stefano
***********************************************
Stefano Calza
Istituto di Statistica Medica e Biometria
Universit? degli Studi di Milano
Via
2018 Jan 09
2
Pre-built binaries unavailable?
Hi LLVM admin team,
I'm trying to download the pre-built binaries from:
http://releases.llvm.org/5.0.1/clang+llvm-5.0.1-x86_64-
linux-gnu-ubuntu-16.04.tar.xz
But unfortunately get the following error:
Error 503 first byte timeout
first byte timeout
Guru Mediation:
Details: cache-lcy19227-LCY 1515490182 1947665089
------------------------------
Varnish cache server
Do you maybe happen to know what is causing the error and how (or when) it
can be fixed?
Thanks a lot for your help!
--
Cheers,
Marko Ristin
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2009 Mar 22
1
barplot2 x-axis
Dear R users,
I am trying to build a barplot2 graph however I can't find a way of defining
the scale for the x-axis.
I would like to show in my x-axis only the numbers 0, 25, 50, 75 etc. (so
far R is giving me a random scale hard to interpret and it doens't look
nice...). Could anyone advise me on how to do this please, it would be a
great help! Thank you.
Below I show the code I have
2009 May 06
1
Duplicating meta-regression results from PROC MIXED with lmer
R-experts:
In 2002, Hans Van Houwelingen et al. published a tutorial on how to do
meta-regression in Statistics in Medicine. They used the classic BCG
dataset of Colditz to demonstrate correct methodology and computed the
results using PROC MIXED in SAS. In trying to duplicate the results
presented in this paper, I have discovered that I can reproduce
certain items with lmer but not
2005 Oct 19
5
Range plots (lattice or base?)
I am looking to create what I would call a "simple variation" on the
boxplot. What I would like to do is to be able to plot the upper and
lower confidence limits as the "box" and the 10th and 90th percentile as
the whiskers. What I have done is write the code to create a dataframe,
the columns of which are the mean, sd, 10th percentile, 90th percentile,
lower confidence limit
2007 Aug 17
6
Gutsy Xen 3.1 2.6.22-9-xen network-bridge problem
Hi,
I have a strange problem with my networking setup. I read all forums around
the world where people had similar problems, but couldn''t find a solution.
I have an Attansic L1 gigeth chip on my mainboard. This chip works OK in
stock Ubuntu Gutsy (development) 2.6.22-9-generic kernel.
When I boot into Xen, and after the bridge is created, the network stops
working. Some info:
- If I
2009 Mar 27
1
Automatic & Permanent Disconnect of WinXP Clients
Hello,
I'd like to enable my Samba server, either by the correct choice of standard configuration parameters or by custom script, to permanently log off and disconnect WinXP clients that have been "inactive" for a specified period of time.
>From my travels around the Web, I've seen this basic question asked by others, but no solutions have materialized.
The