similar to: I might be dumb : a simple question about "foreach"

Displaying 20 results from an estimated 1000 matches similar to: "I might be dumb : a simple question about "foreach""

2007 Feb 08
1
Re : Re: setting a number of values to NA over a data.frame.
Hi again, Awfully sorry John, I should have been sleeping and did not see your full post.... here is a way, unless I miss the point again : fake<-as.data.frame(cbind(seq(1,10,by=1),c(rep(1,4),rep(0,4),rep(2,2)))) # from my previous post # one moree column this time ! fake3<-cbind(fake,fake$V2) index<-c(2,3) fake3[,index][fake3[,index]==0]<-NA not nice, but seems to do the job.
2007 Jul 09
1
about scagnostics
Hi Hadley, thank you for providing this "scagnostics" primer.... I was trying to do some basic testing, and I see that I probably missed some points : first it's not clear for me if the argument of "scagnostics" should be raw data or "processed" data (results of calling "splom" or whatever...). If the first, I thought (from Wilkinson & al.) that if
2007 Apr 05
1
Generate a serie of new vars that correlate with existingvar
Hello, list why not add the smart proposal by Greg Snow as a built-in function in {stats}, just changing the "x234" and "newc" lines to allow for more distributions to be generated ? Or do I miss an already existing function to do that ? Regards. Olivier # slight modification of the original code by Greg Snow [mailto:Greg.Snow at intermountainmail.org] # on April 04, 2007
2007 Jan 08
1
R scripts to plot Taylor Diagram
Dear All, Are there any existing scripts to plot Taylor Diagram (definition see http://www.ipsl.jussieu.fr/~jmesce/Taylor_diagram/taylor_diagram_definition.html ) ? Thanks a lot! Linda [[alternative HTML version deleted]]
2010 Apr 07
1
behaviour of xls2sep when running read.xls (package gdata) sinceupgrade of R
Hello eveRybody (and probably special regards to Gabor G....), I recently upgraded from R-2.9.2-win32 to R-10.1.0-win32, and I'm using Windows XP Professional 2002 with service pack 3 on a PC with IntelCore Duo CPU@ 3.00 GHz. Last time I used it (some weeks ago, before upgrading), one of my scripts (including the two lines cited below) used to run OK. When I ran it yesterday evening (after
2007 Apr 23
1
how to convert the lower triangle of a matrix to a symmetricmatrix
Sorry if this answer was already given, or if I miss the point, but did you have a look to "lowerTriangle" and "upperTriangle" functions in the "gdata" package ? # example # A<-matrix(rnorm(9),3,3) # B<-B<-matrix(NA,dim(A)[1],dim(A)[2]) # lowerTriangle(B)<-lowerTriangle(A) # upperTriangle(B)<-lowerTriangle(A) # diag(B)<-diag(A) Hope this helps,
2006 Jan 17
3
Kriging for d>3
Hi, I'm looking for software that can perform kriging on systems with dimensionality higher than 3, say d=5. Are anyone aware of packages in R that can do this? Thanks, Eivind Sm??rgrav ------------------------------------------------------------------- The information contained in this message may be CONFIDENTIAL and is intended for the addressee only. Any unauthorised use,
2008 Mar 19
1
adimpro package : R does not seem to find my ImageMagick installation
Dear list, (sorry if I post to the wrong place...), Though having spent some time on it, I cannot find an answer by myself to the following behaviour of the read.image function (adimpro package) : I'm running R.2.6.2 on Windows XP. The home directory is C:\Program files\R\R-2.6.2 Version 0.4.4 of adimpro is loaded. ImageMagick 6.3.0 is installed, its directory is C:\Program
2007 Feb 08
1
Re : Re: setting a number of values to NA over a data.frame.
Hi John, Unless I miss a point, why dont you try something like : # some fake data > fake<-as.data.frame(cbind(seq(1,10,by=1),c(rep(1,4),rep(0,4),rep(2,2)))) V1 V2 1 1 1 2 2 1 3 3 1 4 4 1 5 5 0 6 6 0 7 7 0 8 8 0 9 9 2 10 10 2 # change 0 by NA > fake[fake==0]<-NA # or fake$V2[fake$V2==0]<-NA if you
2011 Jan 03
7
Saving objects inside a list
Hello there, any ideas on how to save all the objects on my workspace inside a list object? For example, say my workspace is as follows ls() [1] "x" "y" "z" and suppose I want to put these objects inside a list object, say object.list <- list() without having to explicitly write down their names as in object.list$x = x object.list$y = y object.list$z = z Is
2005 Oct 07
2
R version 2.01.1, Crimson Editor and the "one" from nowhere
Dear List.... sorry to bother you R-gurus with such an "unstatistical" question... but I face a problem using Crimson Editor with R 2.01.1 that I never had using R 2.00.1. I already posted on the Crimson Editor forum but it seems to be VERY few R-users there.... I successfully used R v2.00.1until now (under Windows XP professionnal, version 2002, Service Pack 2, P4 processor CPU 1.8
2007 Feb 16
0
re : array searches
Hi, I am not sure to get the issue, but assuming your data are arranged as in your example with dates in column x$V1 and signals as x$V2 , I think that you could use "rle" in the following way : test<-rle(x$V2) testmat<-matrix(NA,length(test$values),2) testmat[,1]<-x[c(1,cumsum(test$length)[1:(length(test$values)-1)]+1),1] testmat[,2]<-test$values And you'll get your
2011 Jun 28
0
problem with rJava : same as message from wwreith on Mon, 27 Jun 2011
Hi R-listers, I run R version 2.13.0, on a i386-pc-mingw32/i386 platform under Windows XP. I perform daily update of my installed packages. I've got the most recent Java for this platform installed, as I am told by the JavaUpdater when checking. (and I've read the posting guide, so that I'm not going to get fired by Uwe as poor wwreith [joke])... But : since one of the last daily
2012 Mar 19
1
plot method for rasters and layout
Hi list, I thought I was used to layouts, but today I am facing a problem I cannot overcome : On my R installation (Windows 7 Pro, SP1, R version 2.13.0, daily update of packages), I am not able to put raster plots in user defined layouts : > layout.matrix<-matrix(c(1,2,3,4,5,5),2,3) > layout(mat=layout.matrix) > layout.show(5) works fine, I get the correct frames in
2012 Apr 17
1
differents behaviour of packages depending on rJava under 32 and 64 bit versions of R 2.14.2
Hi listeRs, Maybe I have missed something, but I am facing a problem I don't understand even after reading archives and manuals (…maybe not carefully enough !) : On my PC (64-bit OS, Intel Xeon CPU , two L5506@2.13 GHz processors, 12 Go RAM) under Windows 7 SP1, I run both 32-bit (i386-pc-mingw32/i386) and 64-bit (x86_64-pc-mingw32/x64) version 2.14.2 (2012-02-29) of R, packages
2003 Sep 26
2
polar plotting of complex quantities
Hello to everybody, ... and sorry if the question has already been answered. I am dealing with complex numbers and need a way of plotting them on angular plots (2D and 3D). Is there a package that already manage this, or can somebody in this R-world who could help me with his skill ? Thanks to all. Have a nice week-end ! Olivier Eterradossi Ph.D., "PsychoSensory Properties of
2008 Sep 25
3
OHLC Plot with EMA in it
Hi there I have some timeseries data which I plot in a OHLC Plot. In the same plot I'd like to have the EMA of this timeseries. I tried to add the EMA point to OHLC with lines(), but this doesn't work. Has anyone an idea how to handle it? Regards, Michael Zak
2011 May 05
1
quantmod's addTA plotting functions
Hi, I'm having trouble with quantmod's addTA plotting functions. They seem to work fine when run from the command line. But when run inside a function, only the last one run is visible. Here's an example. test.addTA <- function(from = "2010-06-01") { getSymbols("^GSPC", from = from) GSPC.close <- GSPC[,"GSPC.Close"] GSPC.EMA.3
2012 May 21
1
Need help in doing EMA(Exponential Mean Average).
Can somebody help me in finding package/Example in R which could do EMA(Exponential Mean Average). I installed "TTR" package but the 'EMA" function which I was trying to use is giving the following error. Error: Could not find function "EMA" Thanks & Regards, Thomas [[alternative HTML version deleted]]
2003 Jul 29
5
Sending emails from R under Windows
Hi Does anyone know of any R routines to send emails from R, under Windows? I thought about writing such a facility using the R(D)COM package to drive e.g. MS Outlook, but I don't want to reinvent the wheel. I have found a function Sys.mail in the library syskern, but this only works under Unix by shelling out a mail command. Thanks, David