similar to: Fonts and Line widths

HI All, I am trying to analyse the results of a heap of samples, to determine how many samples are required to meet a defined confidence interval. I checked out the R manual for bootstrapping and re-sampling methods, but did not find anything. Are there any contributed procedures that deal with this? thanks, Matt Redding Soil Scientist Intensive Livestock Environmental Management-Research

> Hi All R guru's, > > A couple of simple questions which I cannot find answers to in "an > introduction to R" or in the reference manuals. > > I am running R on Win95, and have plotted up quite a nice box and whisker > plot: > > char<-read.table("n:/reddinm/grifpr~1/survey/char.txt") > attach(char) > boxplot(Al,Fe,OC,pH,

Hi All, I am preparing a few plots for publication. Unfortunately the journal requires figures to have all text in a sans serif fonts. I realise that there is support for the use of Hershey vector fonts in the function TEXT, but how do I get the text on axes to be sans serif? For example, the labels and axis values produced from this line of code: plot(SolPC, SorbPC, ylab="Sorbed P

HI There, I was wondering if there was a procedure in R for carrying out greenhhouse geiser type repeated measures analysis and ante-dependence testing? I've checked out the nicely written manuals, but it seems to lack an entry in the index (maybe because this technique has not been implemented yet). THanks, Matt Redding Soil Scientist Intensive Livestock Environmental Management-Research

Hi R Gurus, I am more or less a beginner with R. I have searched your FAQ, manuals, and the archives of this list for an answer to this question, unsuccessfully. I commonly do analysis of chemical characteristics of soils, by depth intervals (e.g. 0-100 mm, 100-200, 200-300, etc), comparing two soil profiles that have received some treatment (effluent). In Genstat I can handle this problem

Hi All, I've been trying to make some adjustments to the graphics in a paper I wrote some time ago, for which the comments have been returned from the reviewers. I always use R for publication graphics...I think it does the best job available, for the things I am interested in. I could not get my graphics in R 181 to look the same as the old ones (completed 8 months ago), the text seemed

Hi All, I've been trawling through the documentation and listserv archives on this topic -- but as yet have not found a solution. I'm sure this is pretty simple with R, but I cannot work out how without resorting to ugly nested loops. As far as I can tell, grep, match, and %in% are not the correct tools. Question: given these vectors -- patrn <- c(1,2,3,4) exmpl <-

Hi R Gurus, I want to change the size and shape of the plot region, but cannot work out how to use the arguments pin and fin in the par() function e.g. : par(lwd=1.5, font=1, mfrow=c(2,1), pty="m", plt=c(.1,.9, 0.1,.9), mar=c(1,4,0.1,0.1) pin=c(6,12)) this gives me a syntax error associated with pin. How should I be using these arguments? Thanks, Matt Redding

HI All R Gurus, Please reply directly to this email if you have a suggestion, as I am not currently an R-help member. I would like to complete a non-linear regression with groups. Having gone down the path of completing such things under GENSTAT, I would prefer to do it with R. My example data set is... TimeTreat ExtrVol2 SorbedT ET1 39.5 384.5 ET1

Hi R Gurus, I have a question that some of you may have dealt with before. I would redirect output to the clipboard, rather than to the screen. Is this possible? Is a function already written for it, or is it just an option in print? Any help would be appreciated. Also, thanks to all those who have helped develop this great software, or who make the effort here to support the user-base.

Hi All, Is there a means to extract the "10" from "23:10:34" in one pass using strsplit (or something else)? tst <- "23:10:34" For example my attempt strsplit(as.character(tst),"^[0-9]*:") gives [[1]] [1] "" "" "34" Obviously it is matching the first two instances of [0-9]. Note that there may be only one digit

Dear All, Have just installed v2.5.1 on Windows XP. Works fine but I had quite a few pakages loaded for 2.5.0 (from contributed) and was wondering how I can get 2.5.1 to recognise them without having to reinstall them all. Is this possible or do I have to reinstall all the packages again? I required 2.5.1 for lme4 and matrix. Many thanks in advance.

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have the following data: > y [1] 0.000 0.004 0.008 0.016 0.024 0.032 0.044 0.064 0.072 0.088 0.108 0.140 [13] 0.156 0.180 0.208 0.236 0.264 0.296 0.320 0.360 0.408 0.444 0.472 0.524 [25] 0.576 > x [1] 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 [16] 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 I'd

This must be easy to do..... I have a vector and a lookup data.frame: > v [1] "5" "234" "234" "42-43" "234" "42-43" "234" "234" "42-43" "234" "5" "234" "234" "5" "234" "234" "5"

I am trying to generate two dimensional random coordinates. For randomly distributed data I have simply used >xy<-cbind(runif(100),runif(100)) However I also want to generate coordinates that are more uniformly distributed, and coordinates that are more contagiously distributed than the above. Can anyone make any suggestions Thanks. Dr Terry Beutel Rangeland Scientist Animal

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm generating a symmetric correlation matrix using a data matrix as input: mat <- cor(data.mat) My question is: Is there a more memory efficient way to store this data? For instance, since: all(mat == t(mat)) every value is duplicated, and I should be able to almost half the memory usage for large matrices. Any thoughts/comments? Cheers,

Can anyone point me in the right direction for decompressing text files that are compressed as tar.gz or zip files? Cheers, Nathan -- -------------------------------------------------------- Dr. Nathan S. Watson-Haigh OCE Post Doctoral Fellow CSIRO Livestock Industries University Drive Townsville, QLD 4810 Australia Tel: +61 (0)7 4753 8548 Fax: +61 (0)7 4753 8600 Web:

I have a 2 column data.frame: > d[1:5,] a b 1 80015 C 2 80016 B 3 80023 C 4 80062 B 5 80069 B I want to apply a function across each row: > for(i in 1:nrow(d)) { + myFun(con, d[i,]$a, d[i,]$b) + } How do I do this using apply()? I'm unsure how to tell apply() to pass data from columns a and b for a given row as arguments to the function

I have 2 sets of data which defines the start and end of date/time periods. I want to be able to obtain the following: 1) The intersect of those 2 sets of date/time ranges i.e. return start/end date/time ranges where both sets overlap 2) The union of those 2 sets of date/time ranges i.e. return the start/end date/time ranges which are in 1 or both sets Is there anything that is currently able

I have a data.frame obj with 5 columns whose colnames match the fields in my "contact" table. The only other field my MySQL table has is an id field which is the PK and is set to auto increment. I'd like to load this data.frame using something like: dbWriteTable(con, "contact", dat, append=TRUE) However, I get this error: Error in mysqlExecStatement(conn, statement,