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2003 Feb 03
2
[Out off-topic] SJava under Windows
Sorry for this off-topic subject. I am fighting for running SJava under Windows. SJava_0.64 (compiled by Simon Urbanek, thanks), R 1.6.2, Java JDK 1.4.0_02, Windows XP pro: > library(SJava) > .JavaInit() Error in .JavaInit() : Couldn't start Java Virtual Machine: Cannot find the Omegahat interface manager class. Check you classpath! > # And the second time... > .JavaInit() It
2003 Jan 03
0
RE: stange behavior of subset [] (was: lowess + turnpoints = doubling integers?)
Tom Blackwell wrote: >... >I summarized this to myself as "computed subscripts need explicit >rounding in R, but not in S". Here's the sample code which gave >me different results with R than with Splus. I no longer have >Splus available, so I can't check it again. >look <- (10 * seq(14)) - 76 >chk.1 <- seq(1420)[ 10 * (73.1 + look) ] #
2003 Jun 26
1
assignment in lists
Hello, I do not understand the following behaviour. Could someone explain me what happens? > a <- NULL > a$item <- 1:3 > a$item [1] 1 2 3 > rm(a) > a <- NULL > a[["item"]] <- 1:3 Error: more elements supplied than there are to replace Why do I get an error message using list[["item"]], and not using list$item? Best, Philippe Grosjean
2003 Nov 12
1
Power (^) 10x slower in R since version 1.7.1... What next?
OK, I have made a little search about this "problem" that apparently occurs only on Windows platform... (but I am sure most of you are already aware of it): the slow down is due to the adoption of a different algorithm for pow in mingw 3.x. This is motivated by some other changes in mingw. Here is a quote of Danny Smith that did this change: >When mingw changed default FPU settings
2003 Apr 29
1
Feedback about SciViews?
Hello, This message is little off-topic in R-help. Sorry for that, but not all interested people are wired yet to r-sig-gui (http://www.stat.math.ethz.ch/mailman/listinfo/r-sig-gui). Thanks for your comprehension. A preview version of SciViews (a Graphical User Interface for R under Windows, http://www.sciviews.org) was released a few weeks ago. Since then, the Web site recorded several
2003 Mar 18
0
SciViews R GUI preview version available
Hi all, After being a long time off the R and R-SIG-GUI lists, because I was working hard on SciViews, I am happy to deliver the first public version of this program. It is still v. 0.1, that is, an incomplete alpha version. It currently installs only on Windows 2000 or XP (NOT on Windows 9X/ME/Millenium, nor any other platform!). You can download it at http://www.sciviews.org. Please, note that
2003 Apr 24
1
RMySQL crash under R 1.7.0, but not 1.6.2
Hi, I was able to connect to a MySQL database (called "zooscan" and with a table "serie" under Win XP with R 1.6.2 using: > library(DBI) > library(RMySQL) Warning message: DLL attempted to change FPU control word from 8001f to 9001f > drv <- dbDriver("MySQL") > con <- dbConnect(drv, dbname="zooscan") > dbExistsTable(con,
2003 Jan 02
1
rounding errors in max.col()
Hello, I suppose this is a general behavior with external function calls, so I do not post (yet) a specific bug report. Could someone explain this? a <- rep(1, 20) + rnorm(20, mean=0.00001, sd=0.0001) b <- embed(a, 3) # I want to know where the item in column 2 is greated than both col 1 and 3 (peak) test1 <- max.col(b) == 2 # ... or I could use a less optimal code test2 <- apply(b,
2003 Apr 22
2
Handling of upper/lowercase in package names (PR#2816)
Hi, This is (presumably?) a bug in R 1.7.0 under Windows. I have not tested it on other systems. Attachment of packages is case sensitive but not library(), resulting in multiple loadings of the same package if the library name is spelled differently. The following example loads the `tools' package, once as `tools' and once as `Tools'. This behavior is the same with all packages and
2003 Aug 04
7
^ operation much slower in R 1.7.1 than in R 1.7.0 ???
I do not understand what happens here (under Win XP): a <- abs(matrix(rnorm(800*800)/2, ncol=800, nrow=800)) system.time(b <- a^1000)[3] took about 1 sec on my computer with R 1.7.0 and it takes now 4.59 sec with R 1.7.1 Similarly, phi <- 1.6180339887498949 a <- floor(runif(750000)*1000) system.time(b <- (phi^a - (-phi)^(-a))/sqrt(5))[3] took about 0.9 sec with R 1.7.0, and it
2003 Aug 04
7
^ operation much slower in R 1.7.1 than in R 1.7.0 ???
I do not understand what happens here (under Win XP): a <- abs(matrix(rnorm(800*800)/2, ncol=800, nrow=800)) system.time(b <- a^1000)[3] took about 1 sec on my computer with R 1.7.0 and it takes now 4.59 sec with R 1.7.1 Similarly, phi <- 1.6180339887498949 a <- floor(runif(750000)*1000) system.time(b <- (phi^a - (-phi)^(-a))/sqrt(5))[3] took about 0.9 sec with R 1.7.0, and it
2003 Jan 08
2
Undocumented bahavior of as.integer() (PR#2430)
as.integer() truncates doubles toward zero, as Splus does (at least v. 6.1 under Windows does). Thus: > look <- (10 * seq(14)) - 76 > 10 * (73.1 + look) [1] 71 171 271 371 491 586 681 791 886 981 1101 1201 1301 1401 > as.integer(10 * (73.1 + look)) [1] 70 170 270 370 490 586 681 791 886 981 1101 1201 1301 1401 ... It is not documented in R! I propose appending
2003 Jun 27
1
R-help Digest, Vol 4, Issue 27 ( -Reply)
Hi, I am out of town and will get back to you on the 13th of July. Leo >>> "r-help at stat.math.ethz.ch" 06/27/03 00:32 >>> Send R-help mailing list submissions to r-help at stat.math.ethz.ch To subscribe or unsubscribe via the World Wide Web, visit https://www.stat.math.ethz.ch/mailman/listinfo/r-help or, via email, send a message with subject or body
2002 Dec 29
3
lowess + turnpoints = doubling integers?
Happy New Year, r-helpers! I am using lowess to smooth a scatter plot, xx<-lowess(xinput,f=.04) #defaults for other args followed by turnpoints(xx$y) #defaults for other args I plot the smoothed result as well as turnpoints (using yy$tppos) on top of raw data plot. Result is exactly as expected, graphically. For another purpose, I calcuate the difference between turnpoints (representing
2003 Jan 10
3
manipulate all files in folder
Im just attempt writing a function which import manipulate and export spss data, my basic problem when i use the cat command that their is a space to much ? Perhaps here exist a better solution ? cat(paste(path),paste(file)) c:/Project/Allbus/ aprioriTotal.sav test <- function(dir) { for (i in 1:length(list.files)) path <- "c:/Project/Allbus/" file <- list.files()[4] tmpdata
2002 Jan 02
1
Combining files
Hi: I am a very recent user of R 1.40 for MacOSX and went through the help files but did not not find the function that I am looking for. I have two comma separated files which I want to partly combine. File 1 has 49670 lines and 26 columns (separated by commas) and looks like this: ...
2003 Jan 16
3
Announce: pmg -- menu driven GUI using RGtk
Hello all, I've put together a quick and dirty menubar + dialogs + spreadsheet GUI for R using the RGtk package. Performance is not great (OOP is a real memory hog?), the design may be worse, but the hope is that it will be useful in an introductory stats course while we await the arrival of a real gui with ObveRsive and SciViews. The package can be found at
2003 Jan 16
3
Announce: pmg -- menu driven GUI using RGtk
Hello all, I've put together a quick and dirty menubar + dialogs + spreadsheet GUI for R using the RGtk package. Performance is not great (OOP is a real memory hog?), the design may be worse, but the hope is that it will be useful in an introductory stats course while we await the arrival of a real gui with ObveRsive and SciViews. The package can be found at
2002 Jan 18
2
length of dimnames???
Hi: I have made a lot of progress reading and manipulating large data files, thanks to the help of several of you. I am now stuck with writing the final file with the following error (see also the full transcript below): Error in as.matrix.data.frame(x) : length of dimnames[2] not equal to array extent I do not know what it means and could not find how to get around that in the manual nor
2002 Aug 19
2
Help with Lattice
Hi: I have started to use Lattice two days ago and find that it is an outstanding package. I am, however, stumbling on two problems, despite the fact that I have read the help pages as well as two pdf documents on Trellis that I found on the web. 1- I want to remove the ticks on the top and right sides of the panels and did not see any option in "scales" to do so. 2- I would like