Displaying 20 results from an estimated 35 matches for "justin_bem".
2008 Oct 14
2
Re : (a) Credit Scoring models and (b) aceesing earlier emails
Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?...
Nom : non disponible
URL : <https://stat.ethz.ch/pipermail/r-help/attachments/20081014/df8fd0b2/attachment.pl>
2005 Dec 28
2
Importing Genstat files into R
Does anyone know if there is a package or other method of reading Genstat
files directly into R. Genstat isn't listed in the foreign package.
Many thanks,
Graham
[[alternative HTML version deleted]]
2006 Dec 12
0
Re : Re : implementation of t.test
Excuses I have a mistake in previous mail
Type stats:::t.test.defaultThe formal way is to use getAnywhere(t.test)
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d'origine ----
De : justin bem <justin_bem@yahoo.fr>
À : Weiwei Shi <helprhelp@gmail.com>
Cc : R-help@stat.math.ethz.ch
Envoyé le : Mardi, 12 Décembre 2006, 15h40mn 52s
Objet : Re : [R] implementation of t.test
Try this
>stats.t.test.default
Best wishes.
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaou...
2011 Jun 13
1
SAS Mixed
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2006 Sep 13
9
R-question
Hello Colleagues,
I programmed in SAS for 3 years and would like to switch to a not so costly
software product.
Hence I started to evaluate R, and my first test look promising.
However I have some question:
1. Is it possible to query R files by SQL internally on data frames (not on
a database) and how is the syntax (I have the RODBC package installed).
I would like to extract year, Quarter,
2009 Sep 08
0
Re : calling combinations of variable names
Thanks to Justin, Baptiste, and Sebed for your answers.
The solutions work well. I have been putting them to good use today: the
code now works wonderfully and I learnt some useful tricks!
thanks, Peter
<-----Original Message----->
>From: justin bem [justin_bem@yahoo.fr]
>Sent: 9/8/2009 9:06:23 AM
>To: heltertwo@care2.com
>Cc: r-help@stat.math.ethz.ch
>Subject: Re: Re : [R] calling combinations of variable names
>
>may be this can work
>
>testfun<-function(x) {
> rval=""
> k<-length(x)
> for (i in 1: k) rv...
2006 Oct 19
1
Re : CI
Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?...
Nom : non disponible
Url : https://stat.ethz.ch/pipermail/r-help/attachments/20061019/dc66a793/attachment.ksh
2006 Dec 26
1
Colored Dendrogram
...> http://www.nabble.com/Re%3A--R--Higher-Dimensional-Matrices-tf2880928.html#a8051407
> Sent from the R help mailing list archive at Nabble.com.
>
>
>
> ------------------------------
>
> Message: 16
> Date: Tue, 26 Dec 2006 06:41:16 +0000 (GMT)
> From: justin bem <justin_bem@yahoo.fr>
> Subject: [R] Merry Xmas
> To: R Maillist <r-help@stat.math.ethz.ch>
> Message-ID: <20061226064116.53756.qmail@web23014.mail.ird.yahoo.com>
> Content-Type: text/plain
>
> Merry Xmas to U all and happy New year 2007.
>
> Justin BEM
> El�ve Ing�nie...
2007 Aug 11
0
DOE and interaction plot general question
...ith its Registered Office at 123 Old Brompton Road, London SW7 3RP.
>
> This e-mail message is confidential and for use by the addre...{{dropped}}
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 10 Aug 2007 10:28:49 +0000 (GMT)
> From: justin bem <justin_bem@yahoo.fr>
> Subject: [R] Re : compute ROC curve?
> To: gallon li <gallon.li@gmail.com>
> Cc: R Maillist <r-help@stat.math.ethz.ch>
> Message-ID: <156417.27358.qm@web23006.mail.ird.yahoo.com>
> Content-Type: text/plain
>
> see ROCR or accuracy package.
>...
2009 Jan 28
2
t.test in a loop
Hi All,
I've been having a little trouble with creating a loop that will run a a
series of t.tests for inspection,
Below is the code i've tried, and some checks i've looked at.
I've used the get(paste()) idea as i was told previously that the use of the
eval should try and be avoided.
I've run a single syntax to check that my systax is correct and works
without any problems
2009 Jul 09
2
How to Populate List
....ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
------------------------------
Message: 169
Date: Thu, 9 Jul 2009 08:56:08 +0000 (GMT)
From: justin bem <justin_bem@yahoo.fr>
Subject: [R] IIA test
To: R Maillist <r-help@stat.math.ethz.ch>
Message-ID: <973487.17873.qm@web23201.mail.ird.yahoo.com>
Content-Type: text/plain
Dear all,
I'am using mlogit to test IIA hypothesis. I'get the test statistique who is negative, a p-value of 1, and a...
2005 Sep 09
2
shapefiles manipulations ??
cheers ,
I need help in shapefile manipulations. I have two shapefiles of my country Cameroon.
The first contain 10 provinces and each province contains a certain number of administratives units. I dont have ESRI Arc view. I want to add a admistrative unit of the center province to the map with 10 province.
Is it possible to to take a peace of shapefile and combining it to another ?
Thanks !
2006 Aug 22
2
R is wonderful
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2006 Nov 14
2
Variance of a complex estimator using survey package ...
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2006 Dec 06
0
Re : stat question - not R question so ignore if not interested
For the first question x'(y-bx)<>0 or Cov(Ui,Xi)<>0 you have heterogeinity problem !
OLS estimator in this case in biased.
The bias is equal to (Exx')^{-1}Exu
You obtain obtain correct estimator by use instrumental variable or 2SLS ...
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d'origine ----
De
2006 Dec 08
0
Re : formula format for parameter estimation
see nlm or optim
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d'origine ----
De : Wayne Delport <wdelport@botzoo.uct.ac.za>
À : r-help@stat.math.ethz.ch
Envoyé le : Vendredi, 8 Décembre 2006, 8h27mn 44s
Objet : [R] formula format for parameter estimation
Hello, I am trying to input the following formula into R for parameter
2006 Dec 08
0
Re : A smal fitting problem...
May be you are also not familiar with statistic. the solution of
min \sum_{i=1}^{n} (y_{i}-b)^{2} is the mean. So the solution is
b<-mean(y)
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d'origine ----
De : Kåre Edvardsen <ked@nilu.no>
À : R-help <r-help@stat.math.ethz.ch>
Envoyé le : Vendredi, 8 Décembre 2006,
2006 Dec 12
0
Re : implementation of t.test
Try this
>stats.t.test.default
Best wishes.
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.
----- Message d'origine ----
De : Weiwei Shi <helprhelp@gmail.com>
À : r-devel-request@stat.math.ethz.ch
Cc : r-help <R-help@stat.math.ethz.ch>
Envoyé le : Mardi, 12 Décembre 2006, 1h05mn 46s
Objet : [R] implementation of t.test
Hi, there:
2007 Apr 20
2
Udpate R under a proxy
dear all,
I get internet via a proxy server when I try to
downlaod package it always fail. Even when i add and
environnment variable for the http proxy server. I use
windows XP SP2
Sincerly
Justin BEM
El?ve Ing?nieur Statisticien Economiste
BP 294 Yaound?.
T?l (00237)9597295.
2008 Jan 02
0
About Bootstrap
Hi dear R-helpers,
Happy new year. I have estimated Gini index variance in the case of complex survey (stratify and with two stage sampling). I use the survey package. I use replication (bootstrap, and Jacknife) and linearisation according to Binder (1993) article
David A. Binder and Milorad
Kovaˇcevi´c(1993), « Estimating some measures of income inequality from survey
data : An