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Dear ladies and gentlemen! In the help text for the xyplot (library(lattice), help(xyplot)) is an example given how one can use barchart: barchart(yield ~ variety | site, data = barley, groups = year, layout = c(1,6), ylab = "Barley Yield (bushels/acre)", scales = list(x = list(abbreviate = TRUE, minlength = 5)))

Dear ladies and gentlemen! When I use the plot funtion how can I change the size of the title for the x and y axes (xlab, ylab)and the size of the axes label ? Thank you very much. With best regards Claudia

Hello everybody, how can I reduce e.g. 30 days from a date? When I do the following "2011-05-01 CEST" -"2011-04-01 CEST" I get: "Time difference of 30 days" an thats fine. But when I try "2011-05-01 CEST" - 30 I get nonsense. So how can I subtract some days, month or years from a date? thanking you in anticipation Claudia Paladini

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Hello, when I convert a factor like this a=01.10.2009 into a date using b=strptime(a, format="%d. %m. %Y"). It works very well. But when I try to convert c = 2009/10 into a date using d=strptime(c, format="%Y/%m") it doesnt work at all. I get d=NA. What did I do wrong? Thank you very much for your help! best regards Claudia

Hello! I want to create a plot with x- and y-labels writen in times or arial. How can I change the font? Thank you very much. Best regards Claudia

Hello! I used to save R-Grafics like this: postscript("file.ps"). Is there alsoa way to save them as eps? Thank you very much Claudia

Hello, I did some nice grafics using plot 3d and scatter3d. Is there a, hopefully not too complicated way, to transform these dynamic, three-dimensional and interactive grafics in a kind of executable file? I want to show and send them via e-mail to projekt partners who don`t use GNU R and who are not used to do programming. So the result should be quite comfortable to execute for them in

Hello, I want to do a cluster analysis with my data. The problem is, that the variables dont't consist of single value but the entries are pairs of values. That lokks like this: Variable 1: Variable2: Variable3: . . . (1,2) (1,5) (4,2) (7,8) (3,88) (6,5) (4,7) (12,4) (4,4) . . . .

Hello everybody, I've got a problem concerning the function unique. I have got a data.frame "shopdata" with 1000 shop which were evaluated at different points in time. With function subset I chose those shops with more then 10 employee and store it in data.frame "bigshopdata" with 700 shops. bigshopdata=subset(shopdata, shopdata$employee>10) Now I use

Hello, are there fixed threshold values for the changes between different shades of blue in the corrgram? Or is a chang relative depending on the data? I didnt get it in manual. Thank you very much, best regards Claudia

Hello everbody, I want to generate different subsets of my data-set and safe this subsets with names listet in a vector. Because in reality I have got about 70 subsets I want to realize this in a loop Somehow like this: names=c("nam1",

Hello, I took my first steps in dynamic reports with Gnu R and used sweave(). I therefore run Sweave() with an example of Friedrich Leisch, starting like this: \ documentclass [ a4paper ]{ article } \ title { Sweave Example 1} \ author { Friedrich Leisch } \ begin { document } \ maketitle and so on. It worked very well but when I tried to compile the latex file I get this error message: !

Hello! I want to calculate simultaneous confidence intervals for a nominal variable with three categories: "yes", "no", "partially" and I expect that far more than 5 samples fall into each category. I have read that Glaz & Sison's method is only appropriate for variables with 7 or more categories. Therefore, the Goodman method seems like a good idea. I have

Hello everybody, I have got a data set with about 400 companies. Each company has a score for its enviroment comportment between 0 and 100. These companies belong to about 15 different countries. I have e.g. 70 companies from UK and 5 from Luxembourg,- so the data set is pretty unbalanced and I want to do an ANOVA. Somthing like aov(enviromentscore~country). But the aov function is just for

Hello, is it possible to create my own connection which I could use with read.table or scan ? I would like to create a connection that would read from multiple files in sequence (like if they were concatenated), possibly with an option to skip first n lines of each file. I would like to avoid using platform specific scripts for that... (currently I invoke "/bin/cat" from R to create a

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Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on hypatia.math.ethz.ch X-Spam-Level: **** X-Spam-Status: No, hits=4.2 required=5.0 tests=MSGID_FROM_MTA_HEADER,RCVD_IN_BL_SPAMCOP_NET autolearn=no version=2.63 Dear r-help list, my question is about ordination technics:

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