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69 results for “from:Lutze”

write to standard output without NL/CR
lutz.thieme@amd.com · Mar 21, 2002 · r-help

Hello everybody, is there a possibility to write data to standard output without a CR/NL? (I would like append one output string to the next - without using "paste"!) Thanks in advance Lutz Lutz Thieme AMD Saxony Manfacturing GmbH Product...

How to Describe R to Finance People
Lutz Prechelt · Jun 4, 2004 · r-help

> the main advantage it has over SPSS-like software is that you do not > need to explicitly create dummy variables. You only need to specify > your dependent variable and independent variables and R will fit it > (and create dummy variables...

summaries (was: SUMMARY: "elementary sapply question")
Lutz Prechelt · Jun 22, 2004 · r-help

Ajay, thank you very much for picking up that age-old habit of posting summaries. It existed years ago on s-help and I find it is still a great thing: I would not have bothered to read your original...

poisson regression with robust error variance ('eyestudy')
Lutz Ph. Breitling · Jun 2, 2004 · r-help

Dear all, i am trying to redo the 'eyestudy' analysis presented on the site http://www.ats.ucla.edu/stat/stata/faq/relative_risk.htm with R (1.9.0), with special interest in the section on "relative risk estimation...

multiple plot layout and filled contour
lutz.thieme@amd.com · Sep 25, 2003 · r-help

Hello everybody, Could anybody give me a hint how I can use "layout" and "filled.contour" (or "image" plot with a color legend) together, please? What I want to do is something like the following example (Two or more plots...

generating data
Lutz Prechelt · May 7, 2004 · r-help

Do you mean random data? Generate polar coordinates (angle in range 0..2pi, radius in range 0..1) and convert. Lutz > -----Original Message----- > From: r-help-bounces at stat.math.ethz.ch > [mailto:r-help-bounces at stat.math.ethz...

converting string to float
lutz.thieme@amd.com · Feb 4, 2002 · r-help

Hello everybody, I have following string type and try to convert it to float: > a<-"20020104.123456" > str(as.numeric(a)) num 20020104 > str(as.real(a)) num 20020104 > str(as.double(a)) num 20020104 How can I get an...

Lattice: finding out xlim within panel function
Lutz Prechelt · May 3, 2004 · r-help

Dear Lattice bit-meddlers, while within a panel function for xyplot, how can I find out the values of (effectively) xlim and ylim -- no matter whether they have been set explicitly or chosen by Lattice itself? I have just tried...

getting source file name
lutz.thieme@amd.com · Aug 13, 2002 · r-help

Hello everybody, is there a way to get the file name of the source file from which I read and execute my R code? In other words: If I'm executing "source('myRfile.r')" I'd like to have a...

line length limitation in ROracle
lutz.thieme@amd.com · Jul 17, 2003 · r-help

Hello everybody, I found that queries (send by "dbExecStatement" ) with more than 4000 characters length produces an error in ROracle (ver 0.3-3). Maybe there is a limitation of 4kB.... Is this a bug? If yes, is this problem...

blockwise sums
Lutz Prechelt · Aug 31, 2004 · r-help

I am looking for a function like my.blockwisesum(vector, n) that computes sums of disjoint subsequences of length n from vector and can work with vector lengths that are not a multiple of n. It should give me for...

bcanon bug???
Lutz Prechelt · Apr 27, 2004 · r-help

> in some cases the bootstrap estimates for the > highest confidence level are obviously wrong: > 0.05/x -1.33318711781158 > 0.025 -1.09386961626344 > 0.05 -0.868768454819694 > 0.1 -0.652649120212949 > 0.16 0.0453058935697044 > 0.84 0.104645679223495 > 0...

"CTRL-C" and "try"
lutz.thieme@amd.com · Apr 12, 2002 · r-help

First of all - thank you Luke for your detailed explainations. { try(repeat{}); cat("got through try\n"); repeat{}} at the command line. The first C-c should take you out of the `try'. On my Linux system a second C...

3D density plot of point set
Lutz Gehlen · Jul 13, 2011 · r-help

Hello everybody, I would like to solve the problem described below in R (if possible). I am very new to R and have therefore no idea what to even look for in the docu. Therefore, if someone could tell me...

grid lines outside plot region in version R1.4.1
lutz.thieme@amd.com · Apr 18, 2002 · r-help

Hello everybody, if I'm using par(xpd=NA) gridlines will plotted outside the plotting region. This is "new" (and, in my opinion, unaesthetic) in version 1.4 - compared to version 1.3. Is this a bug or a feature...

How to use multiple versions of a R library?
lutz.thieme@amd.com · May 4, 2004 · r-help

Hello everybody, is there a possibility to install and use multiple versions of a R library at the same time? A few words regarding the background of this question: If I change functions of an already developed package, I have...

Mixed-effects models / heterogeneous covariances
Lutz Ph. Breitling · Jan 31, 2006 · r-help

Dear R-list, maybe someone can help me with the following mixed-effects models problem, as I am unable to figure it out with the 'nlme-bible'. I would like to fit (in R, obviously) a so-called animal model...

Comparing two pairs of non-normal datasets in R?
Lutz Prechelt · Jun 9, 2004 · r-help

> Here are the boxplots if that helps: > http://www.ps.masny.dk/guests/misc/A1.png > http://www.ps.masny.dk/guests/misc/A2.png > http://www.ps.masny.dk/guests/misc/C1.png > http://www.ps.masny.dk/guests...

need help!
Lutz Prechelt · May 5, 2004 · r-help

There is a fairly good integration between Excel (if that is what you are using, you did not tell us) and R. You can find that on www.r-project.org. Or you can just use Excel to edit your...

name space conflict using RMySQL and ROracle
lutz.thieme@amd.com · Feb 10, 2004 · r-help

Hello everybody, could anybody give me a hint how to to use RMySQL and ROracle libraries at the same time without getting conflict with name spaces? Because it needs to much time, unloading and reloading the libraries is no solution...

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