search for: justin_bem

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
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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
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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