search for: depauw

...tually similar. I've looked in a couple of the classic R texts, the extensions and developers' manuals, and R help archives, and didn't find a definition. Of course, I may have missed it. Thanks in advance. Bryan ************** Bryan Hanson Professor of Chemistry & Biochemistry DePauw University 602 S. College Avenue Greencastle, IN 46135 PHONE 765-658-4602 FAX 765-658-6084 hanson at depauw.edu http://academic.depauw.edu/~hanson/deadpezsociety.html http://www.depauw.edu/acad/chemistry/ http://academic.depauw.edu/~hanson/UMP/index.html

Gurus: I keep seeing other people?s code that contain ideas like If (x == 2L) X[-1L] X - 1L I have some idea of what?s going on, but where is the use of concepts like ?2L? documented? Thanks, Bryan ************* Bryan Hanson Acting Chair Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA

grDevices::convertColor has arguments 'from' and 'to' which can take on value 'XYZ'. Can someone confirm that 'XYZ' is the same as the CIE chromaticity coordinates that are also sometimes refered to as 'xyY' in the literature? Or are these the CIE tristimulus values? It looks to me like the first case is true, but I would appreciate hearing from one of

...is replace multiple rows simultaneously at once. I suppose I can write a function, but this seems pretty fundamental so I feel I must be missing some obvious alternative. I'm feeling like I'm in the Inferno! TIA. Bryan ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA > sessionInfo() R version 2.12.0 (2010-10-15) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale: [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] splines datasets tools grid grDevices graphics utils stats...

...ehavior be valuable? I can see that it avoids doing floor or as.integer in computations where an index is needed but real numbers are generated for whatever reason, but is that common? Thanks for any insight. Bryan ************* Bryan Hanson Acting Chair Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA

...xpect a number of small additions will be made in the next month or so, as well as some large improvements in speed for 3D plots. Please do let me know if you have questions, feature requests or find problems. Thanks, Bryan **************** Prof. Bryan Hanson Dept of Chemistry & Biochemistry DePauw University Greencastle IN 46135 USA academic.depauw.edu/~hanson/deadpezsociety.html github.com/bryanhanson academic.depauw.edu/~hanson/UMP/Index.html _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...xpect a number of small additions will be made in the next month or so, as well as some large improvements in speed for 3D plots. Please do let me know if you have questions, feature requests or find problems. Thanks, Bryan **************** Prof. Bryan Hanson Dept of Chemistry & Biochemistry DePauw University Greencastle IN 46135 USA academic.depauw.edu/~hanson/deadpezsociety.html github.com/bryanhanson academic.depauw.edu/~hanson/UMP/Index.html _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...As you can see, I tried to do a panel function following something I saw in the Lattice book, but this has no effect at all. Looks like it may have to be more elaborate, but I¹m stuck. Any suggestions appreciated! Thanks, Bryan ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA y <- rnorm(100) x <- rnorm(100) names <- rep(c("Set 1", "Set 2", "Set 3"), 4) df <- data.frame(y = y, x = y, names = as.factor(names)) p <- xyplot(y ~ x | names, layout = c(1, 3), panel = function(...) { p...

Still playing with Lattice... I want to use panel.text(x, y etc) but with x and y in plot coordinates (0,1), not user coordinates. I think if I had this problem with traditional graphics, I could use grconvertX to make the change. I did come across convertX {grid} but this doesn't seem to be what I need. Is there a function like grconvertX in Lattice, or is there a flag or some other

Hello i need some precision about nipals in the chemometrics package in R . When i use nipals in chemometrics i obtain T and P matrix. I really don't understand what to do with these two matrix to obtain the scores for every the component (like in spss fo example) Comp1 Comp2 Comp3 quest1 0,8434 0,54333 0,3466 quest2 0,665 0,7655 0,433 Thank you very

My question is this: is there a way I can make one of the arguments of the function be a string the user can enter, and then have that be the excel filename? ie, foo <- function(x,y,NAME){ #make a matrix with x rows and y cols M <- matrix(nrow=x,ncol=y) #write the matrix write.table(M, file = "result.csv",append=TRUE, sep = ",") } I've had a look but I

...he wrong position). The 3rd throws and error due to "unexpected SPECIAL". Would someone recommend a way to format this? I want the two phrases connected by a right arrow. TIA, these things always elude me. Bryan *********** Bryan Hanson Professor of Chemistry & Biochemistry DePauw University xlab1 <-expression(paste("Phase Angle ", phi, " Neat-O")) xlab2 <- expression(paste("treatment: low stress", "high stress", sep = "%->%")) xlab3 <- expression(paste("treatment: low stress", %->%, "high str...

..."C"), 25) f2 <- rep(c("A", "B"), 50) mydata <- data.frame(res, f1, f2) df <- simple(~ res + f1, mydata) p <- ggplot(df, aes(f1, res)) + geom_boxplot() plot(p) Thanks, Bryan ************* Bryan Hanson Acting Chair Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA > sessionInfo() R version 2.10.1 (2009-12-14) x86_64-apple-darwin9.8.0 locale: [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] datasets tools grid graphics grDevices utils stats methods base other attach...

...V1 and V2 "to the surface" but then I've lost my carefully constructed naming. Any suggestions appreciated. It seems like there might be a simple approach, but I may be too tired right now to see it! Thanks, Bryan ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA

...t why the counts don't appear on my plot? I suppose I can always clean the data first, but it would be much more practical to do that in the background during the preparation of the plot. Thanks as always, Bryan ************* Bryan Hanson Acting Chair Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA

...laborious. I think I can construct the full set of indices I want with a2[1]:a2[2] but is there a more clever way to do this? I'm thinking there might be a function out there that I am not aware of. TIA, Bryan ************* Bryan Hanson Acting Chair Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA

Has anyone plotted or is it possible to plot CIE *xy* chromaticity diagram http://en.wikipedia.org/wiki/File:CIE1931xy_blank.svg I need this plot in color. ishida [[alternative HTML version deleted]]

...like image analysis (but only 2D), but it's not quite either of those and I need to know what it's really called to investigate further. Any suggestions as to R pkgs and key words/phrases will be appreciated. TIA, Bryan ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle Indiana USA

...s of A, B with lrg, sm, and then create one long vector of colors for the entire plot? I tried something like this, and was not successful, but perhaps could be with more work. All advice appreciated, Bryan (session info below) ************* Bryan Hanson Professor of Chemistry & Biochemistry DePauw University, Greencastle IN USA > sessionInfo() R version 2.9.2 (2009-08-24) i386-apple-darwin8.11.1 locale: en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 attached base packages: [1] grid datasets tools utils stats graphics grDevices methods [9] base other atta...

On this feed, which I think is the place we should monitor upcoming changes: http://developer.r-project.org/blosxom.cgi/R-devel/NEWS What is the significance of the green and pink highlighting? Thanks, Bryan