similar to: Matrix indexing question

Displaying 20 results from an estimated 10000 matches similar to: "Matrix indexing question"

1999 May 19
1
shell command
Using R (version 0.63.3) for MS windows, I try the following command > shell(paste("cd ",getenv("RHOME"),sep="")) which replies with an error message Too many parameters - FILES\RW0633 which appears to suggest that the space if the path name is causing difficulties to the cd command. getenv returns > getenv("RHOME") RHOME
1999 Jun 18
1
R INSTALL -l
The FAQ says in [5.2 How can add-on packages be installed?] to install a package to a private tree, use [$ R INSTALL -l lib pkgdir_1 ... pkgdir_n] where lib gives the path to the library tree to install to. which, for me, returns Package '-l' does not exist. Has there been a change? Thank you Ross -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~. |Ross
2000 Aug 22
1
adj parameter in mtext
I am trying to adjust the sigma symbol down in the y direction with the following command but R recycles the sigma and puts another at -0.1 in the x axis. Any suggestions would be appreciated. mtext(expression(sigma),1,outer=TRUE,adj=c(0.5,-0.1)) Regards Ross Darnell -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read
2001 May 04
1
image legend
I am trying to place a legend onto an image but the legend to clipped/nonexitent outside the boundary of the image. I am wanting to place the legend where the main title normally would appear. I would appreciate someone telling me why I cannot do this. (Which part of the help file I haven't read most likely) Regards Ross Darnell
2000 Jun 26
2
Data.frame query
I think I have a data.frame called "statlab". > is.data.frame(statlab) [1] TRUE and I can perform summary, dim, ... but when I try > attach(statlab) Error in attach(statlab) : attach only works for lists and data frames I am using > version _ platform i686-unknown-linux arch i686 os linux system i686,
2000 Nov 16
1
postscript error
I have generated a graph on the X11 device, but when I > dev.copy(postscript) postscript 3 > dev.off() X11 2 > the Rplots.ps file is generated but contains a prologue only. Can anyone suggest what I am doing wrong? Just to anticipate the upgrade reply ... > version _ platform i686-pc-linux-gnu arch i686 os linux-gnu
2005 Sep 13
2
Translating lme model call to lme4
I would appreciate help translating the following lme model to an lmer function. lme(lognrms ~ Group*Rotation*muscle*side*support*arms, random=~1|Subject/Stratum2/rep, data=Data) Many thanks Ross Darnell r.darnell at uq.edu.au
2007 Oct 17
2
Need help with function that includes 2 summation
I am relatively new to R, so this may be a much simpler question than it seems to me. I am trying to create a function that includes two summations, and can't figure out how. I am attaching the equation as a pdf file. This function will then be optimized over a chosen range of values, but right now I just need help with the function. Thank you. Zack Darnell Duke University -- Zack
2003 Nov 04
2
help with nomogram function
I have fitted a logistic regression model > failed.lr2$call lrm(formula = failed ~ Age + task2 + Age:task2, data = time.long, na.action = na.omit) using the Design package functions and would like to generate a nomogram from this model. the datadist information is generated and stored in > ddist time.long$Age time.long$task2 Low:effect 45
2002 Dec 05
2
Problems with segments and multiple graphs
I would like to create a page of two graphs (2 rows by 1 col) and then draw vertical lines (segments?) on both graphs from the minimum values to the corresponding maximum value. So I have tried # > y <- rnorm(3000) > par(mfrow=c(2,1)) > plot(y,type="l") > plot(cumsum(y),type="l") > segments(1000,min(cumsum(y)),1000,max(cumsum(y))) > par(mfg=c(1,1)) >
2002 Feb 15
2
Reordering factor levels
I would like to define the order of the levels of a factor. The relevel function would work but since I have 20 levels I would prefer to declare the order explicitly. Using a smaller example levels(oldfactor) "b1" "b2" "r1" "r2" nufactor <- order(oldfactor,order=c("b1","r1","b2","r2")) # my fabricated function
2005 Apr 13
3
A suggestion for predict function(s)
Maybe a useful addition to the predict functions would be to return the values of the predictor variables. It just (unless there are problems) requires an extra line. I have inserted an example below. "predict.glm" <- function (object, newdata = NULL, type = c("link", "response", "terms"), se.fit = FALSE,
2007 Aug 28
4
Nodes & edges with similarity matrix
Hello, I apologise if someone has already answered this but I searched and googled but didn't find anything. I have a matrix which gives me the similarity of each item to each other. I would like to turn this matrix into something like what they have in the graph package with the nodes and edges. http://cran.r-project.org/doc/packages/graph.pdf . However I cannot find a method to
2003 Dec 20
3
Level(3) SIP termination services
John, I spoke with Level(3) last week regarding SIP termination. They quoted $0.01/minute, with an 11 Million Minute / Month minimum. Ugh! -dg -------------------------------------------------------------- Darnell Gadberry President binaryMedia darnell AT binmedia DOT com ------------ Date: Fri, 19 Dec 2003 21:12:22 -0500 To: asterisk-users@lists.digium.com From: John Todd
2004 Jun 01
1
WinMenu's question
I am using the Windows menu functions below which will work on the first pass, but if I repeat the same script I cannot get the WinMenuAddItem to work. This is a problem if I change the menu structure and reread the source code I am forced to quit and restart Rgui. "try.menu" <- function(){ OS <- .Platform$OS.type GUI <- .Platform$GUI if (!(OS == "windows" &
2007 Apr 18
1
[Bridge] RE: [VLAN] Re: [PATCH/RFC] Let {ip, arp}tables "see" bridged VLAN tagged{I,AR}P packets
-----Original Message----- >From: Tommy Christensen [mailto:tommy.christensen@tpack.net] >Sent: Wednesday, October 08, 2003 10:09 AM >To: Christian Darnell >Cc: 'Linux 802.1Q VLAN'; Bart De Schuymer; netdev@oss.sgi.com; bridge >Subject: Re: [Bridge] RE: [VLAN] Re: [PATCH/RFC] Let {ip, arp}tables >"see" bridged VLAN tagged{I,AR}P packets > > > >This
2010 Nov 15
1
Version 2.12.0 exe file
I have R version 2.9.1 on my computer and the anlaysis is not working because I need to update to R version 2.12.0 the latest release. The person incharge of IT tried to download R version 2.12.0 but .exe file referenced in install isn't there - What might we be doing wrong? We have downloaded as tar.gz, uncompress then look for .exe file but not present. Many thanks, Morris
2007 Jan 25
3
Error in loadNamespace(name) (PR#9464)
Full_Name: Ross Darnell Version: 2.4.1 OS: Linux Submission from: (NULL) (130.102.133.33) rdarnell at pc:~/Data$ ls -al .RData -rwxrwxrwx 2 root root 13551 2006-12-06 08:58 .RData rdarnell at pc:~/Data$ R R version 2.4.1 (2006-12-18) Copyright (C) 2006 The R Foundation for Statistical Computing ISBN 3-900051-07-0 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to
2004 Jul 20
1
Histogram without common borders
Is it possible to produce a histogram directly using the hist() function with the common borders removed? It can be done by plotting the histogram object using type 's'teps. my.hist <- hist(x,plot=FALSE) plot(my.hist$breaks,c(0,my.hist$counts),type='s') I would appreciate help Ross Darnell -- University of Queensland, Brisbane QLD 4067 AUSTRALIA Email: <r.darnell at
2001 Oct 23
1
Rows function in nlme package
The Rows function which is called from plot.compareFits in the nlme package is not found. > plot(compareFits(coef(bp.model3),coef(bp.model3M))) Error in plot.compareFits(compareFits(coef(bp.model3), coef(bp.model3M))) : couldn't find function "Rows" > Can I find it elswhere? Have I missed a required package? Thanks Ross Darnell > library(help=nlme) nlme