search for: kotschy

...a way of making it produce the 5 lines above without a for loop. I would also like to assign the names automatically. I can create them easily using paste, but how does one get R to treat the resulting character strings as object names to which values can be assigned? Thanks! Karen --- Karen Kotschy Centre for Water in the Environment University of the Witwatersrand, Johannesburg, South Africa -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

...see that they seem to do exactly what I want, except that they are non-metric, which means, as I understand it, that they relate the rank orders of the variables rather than the actual distances. Could I use these non-metric MDS packages even if my distances are metric? Thanks Karen -- Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg P/Bag X3, Wits, 2050 Tel: +2711 717-6425

Dear help list Does anybody know if it is possible to somehow tell R to let LaTeX handle the fonts for postscript plots produced by R? It is for a thesis and I have MANY figures. These are created by R scripts dynamically as the document is compiled, using the Make system. I see that I can `manually' specify the font family each time I call the postscript device, but I am looking for a

...ink of doing it is to split the data frame by species, then add a column to each subset showing the group, then re-join all the subsets. This seems clumsy and prone to errors. Anyone know a better way? I've looked at expand.grid and gl but they don't seem to do what I want. Thanks! Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg South Africa

...x<-c(1,2,3,4,5) y<-c(1.1, 2.3, 3.0, 3.9, 5.1) ucl<-c(1.3, 2.4, 3.5, 4.1, 5.3) lcl<-c(.9, 1.8, 2.7, 3.8, 5.0) plot(x,y, ylim=range(c(lcl,ucl))) arrows(x,ucl,x,lcl,length=.05,angle=90,code=3) #or segments(x,ucl,x,lcl) but I can't get it to work on a barplot. Any ideas? Thanks! Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

Hi everyone I'm trying to generate a vector of the form a <- c(1,2,3,4,1,2,3,1,2,1) where n = 5 in a general way, where n can be any positive integer. I've run out of ideas. Does anyone have any suggestions? Thanks Karen Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

Hi everyone I'm trying to generate a vector of the form a <- c(1,2,3,4,1,2,3,1,2,1) where n = 5 in a general way, where n can be any positive integer. I've run out of ideas. Does anyone have any suggestions? Thanks Karen Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

...i Could somebody please explain the following to me: If x is a 10x10 matrix, typing x[3] prints all 10 values of column 3, although the length of the vector =1. Why? x[,3] and x[[3]] both give all 10 values of column 3, length=10. What is the difference between these two, actually? Thanks Karen Kotschy Centre for Water in the Environment Department of Botany University of the Witwatersrand Johannesburg South Africa Tel : +2911 716-2218 Postal address: P/Bag 3 P.O Wits 2050 South Africa -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read htt...

Another question: Is it possible to move R objects from one directory to another without copying the whole .RData and .Rhistory files? (I'm running under Linux) Thanks Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

...ale" by iteratively improving the fit between observed dissimilarities and inter-object distances, using the KYST algorithm (Kruskal, 1964). I have found several implementations of non-metric MDS in various packages but nothing like what I have described above. Thanks in advance -- Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg P/Bag X3, Wits, 2050 Tel: +2711 717-6425

...Then I get an error message "Covariance matrix is apparently singular" What does this mean? I can't see anything strange about the covariance matrix, and am not getting anywhere with the help files. >dim(fg.cov$cov) [1] 15 15 >length(fg.cov$center) [1] 15 Thanks -- Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg South Africa P/Bag X3, Wits, 2050 Tel: +2711 717-6425

Does anyone know if an R plug-in exists for the GIS package ArcView running under Windows98 or NT? I know such a plug-in is available for S-PLUS. Thanks Karen Kotschy Centre for Water in the Environment Department of Botany University of the Witwatersrand Johannesburg South Africa Tel : +2911 716-2218 Postal address: P/Bag 3 P.O Wits 2050 South Africa -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read htt...

...as Lumley did post some code for 3 post hoc tests (Bonferroni, Holm and Hochberg) a while ago (see below), but I am still battling to work out how I would actually use one of these on my data. Is there anyone who would be prepared to guide me through the process? Please? Thank you Karen Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

...;Don't know method")) m <- match.call() m[[1]] <- as.name(paste("p.adjust", c("hochberg", "holm", "bonferroni")[how], sep=".")) m$method <- NULL eval(m, sys.parent()) } --------------------- Karen Kotschy Centre for Water in the Environment Department of Animal, Plant and Environmental sciences University of the Witwatersrand Johannesburg South Africa Tel : +2911 716-2218 Postal address: P/Bag 3 P.O Wits 2050 South Africa -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...", b) rm(a, b) colnames(tab) <- c("q", "results") output <- list("Tukey's Multiple Comparison Test","Ranked means" = x, "se" = se, "qtables" = qt, tab) return(noquote(output)) } Karen Kotschy Centre for Water in the Environment University of the Witwatersrand Johannesburg Tel: 011 716-2218 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or...

Dear R users, I am using Sweave. I would like to use the width option for the graphics : \begin{figure}[h!] \centering \includegraphics[width=0.7\textwidth]{x} \end{figure} How do I get this ? Thank you very much, Randall [[alternative HTML version deleted]]

Hello, I have a data set with 9700 records, and 7 parameters. The data were collected for a survey of forest communities. Sample plots (1009) and species (139) are included in this data set. I need to determine how species are accumulated as new plots are considered. Basically, I want to develop a species area curve. I've included the first 20 records from the data set. Point