search for: kaliwe

Displaying 15 results from an estimated 15 matches for "kaliwe".

2006 Jan 23
8
Image Processing packages
...Dct, Segmentation, Restoration. I'm aware, that Octave, Matlab etc. would be a good address but then I'm missing the "statistical power" of R. Does anybody know of packages, projects etc. Comments on wether the use of R for such matters is useful are welcome. Greetings Thomas Kaliwe [[alternative HTML version deleted]]
2009 Jan 05
1
strwidth to lines
...quot;ZZZZZzzzzz","ZZZlllll","TTTTT","Zzhtsddfg" ) par(mfrow = c(1,2)) par(mar = c(8,4,4,2)) barplot(x, las = 3, main = "8 is to much") par(mar = c(4,4,4,2)) barplot(x, las = 3, main = "4 is not enough") ### strwidth2lines... regards Thomas Kaliwe
2008 Nov 26
1
S4 slot containing either aov or NULL
...ion(value = "aovOrNULL")) y1 = new("c1", value = NULL) #trying to assign an aov object to the slot doesn't work utils::data(npk, package="MASS") npk.aov <- aov(yield ~ block + N*P*K, npk) y2 = new("c1", value = npk.aov ) Any ideas? Thank you Thomas Kaliwe
2009 Mar 19
4
Import R-output into Java
Hello, I want to import R-output via Rserve to Java, especially for the function ctree from the package party. Rserve is working properly. Yet, I only get the predictions with the Java code try{ RConnection c = new RConnection(); ... c.voidEval("modell <- ctree(...)"); REXP y = c.eval("nodes(modell,1)[[1]]$prediction"); ...
2006 May 05
3
OT: DOE - experiments for teaching
Hi, I'm sorry for this not being related to R but I think this is a good place to ask. I'm looking for DOE examples(experiments) that can be done at home or in class, such as Paper Helicopter, Paper Towel etc.. I'm thankful for any comment. Thomas [[alternative HTML version deleted]]
2009 Mar 04
2
lattice: remove box around a wireframe
#Hi, # #somebody knows how to remove the outer box around a wireframe and reduce the height # # test = data.frame(expand.grid(c(1:10), c(1:10))) z = test[,1] + test[,2] test = cbind(test, z) names(test) = c("x", "y", "z") require(lattice) wireframe(z ~ x*y, data = test, par.box = c(col = "transparent") ) #not this one but the remaining outer box.
2009 Jul 17
2
how to evaluate character vector within pnorm()
Hi, I'm trying to evaluate a character vector within pnorm. I have a vector with values and names x = c(2,3) names(x) = c("mean", "sd") so that i tried the following temp = paste(names(x), x, sep = "=") #gives #> temp #[1] "mean=2" "sd=3" #Problem is that both values 2 and 3 are taken as values for the mean argument in pnorm pnorm(0,
2007 Mar 23
1
using "\t" in mtext
Hi, Using tab spaces in mtext e.g. > mtext("\t") little squares are plotted. Is there a way to use "\t" without getting squares displayed? Thanks Thomas [[alternative HTML version deleted]]
2010 Mar 16
2
R-Documentation including an image?
...an image in a .Rd file, something like \img{} In http://cran.r-project.org/doc/manuals/R-exts.html#Documenting-packages nothing's mentioned regarding images (besides the image of the workspace) Is there a way to include an image? Thanks in advance, Thomas -- Dipl.-Ing. Thomas Roth (geb. Kaliwe) Technische Universitaet Berlin Institut f?r Werkzeugmaschinen und Fabrikbetrieb (IWF) Fachgebiet Qualitaetswissenschaft Pascalstr. 8-9 10587 Berlin Tel: +49 (0) 30 / 314 23 565 e-mail: thomas.roth at tu-berlin.de Web: www.qualitaetswissenschaft.de
2009 Jun 24
1
lattice wireframe within a loop ???
Hi, I have the following problem. Calling wireframe within a loop results into an empty window(s) #generate some data temp = expand.grid(A = 1:3,B = 1:3) temp = cbind(temp, y1 = rnorm(9)) temp = cbind(temp, y2 = runif(9)) #plot y1 and y2 in two different windows for(i in 1:2) { wireframe(y1 ~ A*B, temp, shade =T) windows() wireframe(y2 ~ A*B, temp, shade =T) } #However, calling it twice
2008 Jun 25
2
T and P Statistics
How do you calculate T and P statistics (T- test) in R? Is there a package out there that can do these calculations? Best, Michael Tong Futures Associate Quantitative Research Services Franklin Templeton Investments, Inc. 600 Fifth Ave New York, NY 10020 (212) 632-4254 mtong@templeton.com Notice: All email and instant messages (including attachments) sent to or from Franklin Templeton
2009 Mar 09
5
Help
...leria pedrina) > 23. S4 object (Laurina Guerra) > 24. Re: Very slow: using double apply and cor.test to compute > correlation p.values for 2 matrices (Jorge Ivan Velez) > 25. Re: Chi-Square Test Disagreement (Chuck Cleland) > 26. S4 slot containing either aov or NULL (Thomas Kaliwe) > 27. odfWeave and XML... on a Mac (Tubin) > 28. Re: Very slow: using double apply and cor.test to compute > correlation p.values for 2 matrices (hadley wickham) > 29. Re: Very slow: using double apply and cor.test to compute > correlation p.values for 2 matrices (Dare...
2009 Jun 29
5
Help
HiĀ group, I found a module for adaptive kernel density estimation for Stata users, but unfortunetly I don't have access to Stata, can I find a similar approach using R? Thank u so much 4 ur time. [[alternative HTML version deleted]]
2006 Apr 20
0
parsing arguments of a function
Hi, I have a simple problem writing a function that is to be called like Myfunction( Column1 = low, Column2 = high, Column3 = all, Column4 = all, data = mydata) {. contourplot(z ~ mydata$Column3* mydata$Column3) . } Where Column1 and Column1 are the names of the dataframe mydata. How do I parse the arguments to obtain both, name and value of the argument. I tried strsplit(Column1,
2009 Jun 11
0
S4 Package with definition of method 'names'
Dear List, Is it possible to build a package with 'names' method for a S4-Class? The following works if directly pasted into R: (a simple test class with 1 attribute that is returned by invoking 'names') #class definition setClass("test", representation = representation(name = "character"), prototype = prototype(name =