Displaying 20 results from an estimated 63 matches for "iuri".
2006 Aug 10
5
Variance Components in R
...D = REML
/DESIGN = CHAIN SECTOR RESP ASPECT ITEM
SECTOR*RESP SECTOR*ASPECT SECTOR*ITEM CHAIN*RESP
CHAIN*ASPECT CHAIN*ITEM RESP*ASPECT RESP*ITEM
SECTOR*RESP*ASPECT SECTOR*RESP*ITEM CHAIN*RESP*ASPECT
/INTERCEPT = INCLUDE.
Thank you for your help.
Best regards,
Iuri.
_______________________________________
Iuri Gavronski - iuri at ufrgs.br
doutorando
UFRGS/PPGA/NITEC - www.ppga.ufrgs.br
Brazil
2010 Mar 21
2
Levene's Test for Homogeneity of Variance
...of Variance I use R Commander,
and this is the output:
> levene.test(Dataset$age, Dataset$sex)
Levene's Test for Homogeneity of Variance
Df F value Pr(>F)
group 1 0.8739 0.3567
33
I am not sure what means "Pr(>F)"? Can anyone explain/translate this?
Regards,
Iurie Malai
Department of Psychology and Special Education
Moldova Pedagogical State University
iurie.malai@gmail.com
[[alternative HTML version deleted]]
2010 Jun 18
3
Non-procedural access to columns of a matrix
...:
> for (i in 1:3) print(x[i,x[i,4]])
[1] 11
[1] 23
[1] 32
>
> for (i in 1:3) {x[i,x[i,4]] <- x[i,x[i,4]] + 5}
> x
[,1] [,2] [,3] [,4]
[1,] 16 12 13 1
[2,] 21 22 28 3
[3,] 31 37 33 2
>
Is there a way to get the same results without looping?
Best,
Iuri.
2006 Sep 20
8
Statitics Textbook - any recommendation?
...re only R
textbooks, that is, textbooks where R is the focus, not the
statistics. And I would like to find the opposite.
Other text I am trying to find is multivariate data analysis (EFA,
cluster, mult regression, MANOVA, etc.) with examples with R.
Any recommendation?
Thank you in advance,
Iuri.
2010 Apr 09
6
How to run Shapiro-Wilk test for each grouped variable?
...st
but I must to change the variable number manualy. How to automate this?
I tried this:
> for (r in 3:18) {
> by(eval(parse(text=(paste("data",data.n[3],sep="$")))), data$groupFactor, shapiro.test)
> }
but not working and no errors. Why?
Please help.
--
Regards,
Iurie Malai, Senior Lecturer
Department of Psychology
Faculty of Psychology and Special Education
Ion Creanga Moldova Pedagogical State University - www.upsm.md
http://en.wikipedia.org/wiki/Ion_Creang%C4%83_Pedagogical_State_University
2010 Aug 17
3
Wilcoxon test and grouping factor with multiple levels
...ve a dataset with two variables: $esan - a grouping factor with 8
levels and $reus. I'd like to do wilcox.test on this dataset as
sugested Weiwei here:
https://stat.ethz.ch/pipermail/r-help/2007-July/136627.html. I tried
to adapt his recommendation but no succes. Can anyone help me?
Regards,
Iurie Malai, Senior Lecturer
Department of Psychology
Faculty of Psychology and Special Education
Ion Creanga Moldova Pedagogical State University
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"esan" "reus"
1 9.3
1 9.05
1 7.78
1 7.11
1 7.14
1 8.12
1 7.5
1 7.84
1 7.8
1 7.52
1 8.84
1 6.98
1...
2010 Jun 05
3
Wilcoxon test output as a table
...ot; "5e-04" "0.008" "0.756" "4e-06" "0.089"
"0.059"
Can anyone share their views? Propose an improvement? For example, how to
make it appear as a table, not as separate rows? How to remove quotes? How
to show rows names W and P?
Regards,
Iurie Malai, Senior Lecturer
Department of Psychology
Faculty of Psychology and Special Education
Ion Creanga Moldova Pedagogical State University - www.upsm.md
http://en.wikipedia.org/wiki/Ion_Creang%C4%83_Pedagogical_State_University
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"GrFac","X1&q...
2011 Apr 15
1
Launcher for Rattle?
How to make a launcher for Rattle?
Regards,
Iurie Malai
Moldova Pedagogical State University
[[alternative HTML version deleted]]
2009 Oct 23
4
How to apply the Wilcoxon test to a hole table at once?
...Wilcoxon rank sum test with continuity correction
data: X3 by X2
W = 439, p-value = 0.1291
alternative hypothesis: true location shift is not equal to 0
>
I researched on this, but I can't find a solution.
I would really appreciate any help.
P.S. Excuse my lack of terminology :).
Iurie Malai
Moldova Pedagogical State University
--
View this message in context: http://www.nabble.com/How-to-apply-the-Wilcoxon-test-to-a-hole-table-at-once--tp26030572p26030572.html
Sent from the R help mailing list archive at Nabble.com.
2010 May 25
2
Get output values in a table
...8 IA IV
1 town 0.0030465882 0.002068448 0.01129771 7.606061e-06 1.189380e-03
0.001396341 0.009097276 6.824918e-05 0.4877525 0.08005584
2 country 0.0002436141 0.005135004 0.01540923 2.469611e-06 1.372854e-05
0.001517259 0.052174738 1.057227e-06 0.3172002 0.15745973
Regards,
Iurie Malai
Department of Psychology
Ion Creanga Moldova Pedagogical State University - www.upsm.md
http://en.wikipedia.org/wiki/Ion_Creang%C4%83_Pedagogical_State_University
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"GroupFactor",1,2,3,4,5,6,7,8,"IA","IV"
"town",7,...
2018 Feb 26
3
Precision in R
Hi,
Why sum() on a 10-item vector produces a different value than its
counterpart on a 2-item vector? I understand the problems related to
the arithmetic precision in storing decimal numbers in binary format,
but shouldn't the errors be equal regardless of the method used?
See my example:
> options(digits=22)
> x=rep(.1,10)
> x
[1] 0.10000000000000001 0.10000000000000001
2012 Nov 05
1
A general question: Is language S a component part of R?
...e (Called 'S') ... ". Now I'm a little
confused. This means that language S is a component part of R? And S is not
free? But R is free? Or the mentioned S is only "a free implementation" of
the "true S"? Can anybody explain this? I want to know.
Thank you!
--
Iurie Malai
Senior Lecturer
Ion Creanga Moldova Pedagogical State University
[[alternative HTML version deleted]]
2009 Apr 09
1
CFA in R/sem package
..., for
that application and if you can share your thoughts/experiences on
using it. I don't thing I would have problems "porting" my models to
R/sem, but I would like to know if there is an optimized process of
doing that tests, without manually coding all the dozens of models.
Best,
Iuri.
2011 Jun 08
1
Autocorrelation in R
...t;yd"])
library(nlme)
trend = time(gc_ts)
fit_lm = lm(gc_ts ~ trend + yd_ts)
acf(resid(fit_lm))
pacf(resid(fit_lm))
gls_ex32_ar1 = gls(gc_ts ~ trend + yd_ts, correlation = corAR1(form=
~yd_ts),method="ML")
summary(gls_ex32_ar1)
_____________________________________________
Dr. Iuri Gavronski
Assistant Professor
Programa de P?s-Gradua??o em Administra??o
Universidade do Vale do Rio dos Sinos ? UNISINOS
Av. Unisinos, 950 ? S?o Leopoldo ? RS ? Brasil
Sala (Room) 5A 406 D
93022-000
www.unisinos.br
TEL +55-51-3591-1122 ext. 1589
FAX +55-51-3590-8447
Email: igavronski at unisinos....
2010 Oct 01
0
Wine release 1.3.4
...Caban (21):
mshtml: Fixed hash part stripping in GetQuery.
urlmon: Skip tests on very old IEs as soon as possible.
include: Fixed D3DMULTISAMPLE_FORCE_DWORD value and added MAKEFOURCC definition guard.
include: Added D3DVECTOR_DEFINED guard.
urlmon: Make protocol_start IUri-based.
urlmon: Added about:blank IUri test.
jscript: Better checks for too old jscript.dll versions.
mshtml: Added PrintHTML stub.
mshtml: Renamed uri to nsuri.
mshtml: Added nsIURI::GetHost implementation based on IUri API.
mshtml: Added nsIURI::GetPort implemen...
2009 Oct 31
3
Plots with k-means
Hi,
I'm doing a k-means cluster with 6 clusters and 15 variables. Any
suggestions on how to plot the results?
I've tried the standard xy plot, but couldn't get much of it.
Thansk in advance,
Iuri.
2009 Nov 08
1
Models for Discrete Choice in R
Hi,
I would like to fit Logit models for ordered data, such as those
suggested by Greene (2003), p. 736.
Does anyone suggests any package in R for that?
By the way, my dependent variable is ordinal and my independent
variables are ratio/intervalar.
Thanks,
Iuri.
Greene, W. H. Econometric Analysis. Upper Saddle River, NJ: Prentice Hall, 2003
2006 Jan 20
2
How to have a phone ring another extension as soon as off-hook?
I am seeking to implement the following behavor:
When a headset on phone1 is picked up, phone2 rings right away, without any
need to dial numbers on phone1. Is this possible to implement?
ScriptHead
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2012 Jan 21
1
Function for multiple t tests
Hi,
I want to run t.test() for several variables among two groups, and I
would like to skip the tedious process of collecting information to
assemble a table, but I am not sure if the function I want already
exists. Any suggestion would be appreciated.
I have a working example, as required by the posting guide:
my_swiss = swiss[-1,]
my_swiss$facto = rep(1:2,nrow(my_swiss)/2)
2009 Feb 16
1
Help with rgl
Hi,
I don't know much about the RGL package, and I have read the
documentation and tried some parameters, with no luck... I would like
to generate a movie from a 3D object (code below), where the vortex A
is closer to the observer, and then the object rotates and the B
vortex gets closer. I would like to capture this movie to a file.
By the way, I am not being able to insert unicode text