similar to: Questions on counts by case

Dear R-users, I would like to maximize the function g above which depends on 4 parameters (2 vectors, 1 real number, and 1 matrix) using optim() and BFGS method. Here is my code: # fonction to maximize g=function(x) { x1 = x[1:ncol(X)] x2 = x[(ncol(X)+1)] x3 = matrix(x[(ncol(X)+2):(ncol(X)+1+ncol(X)*ncol(Y))],nrow=ncol(X),ncol=ncol(Y)) x4 = x[(ncol(X)+1+ncol(X)*ncol(Y)+1):length(x)]

Hi, looking at the fresh CVS state I see: class Register<string n> : RegisterBase<n> { list<RegisterBase> Aliases = []; } while previously the Register class did not require any parameters. The change log is just: * Target.td: Revamp the Register class, and allow the use of the RegisterGroup class to specify aliases directly in register definitions. and I

On Tue, 16 Nov 2004, Vladimir Prus wrote: > and I could not find any discussions in the archives. > > Why the change was necessary? Writing: > > def gr0 : Register<"gr0">; > def gr1 : Register<"gr1">; > def gr2 : Register<"gr2">; > def gr3 : Register<"gr3">; > def gr4 :

Dear RHelp-list, ?? Using dplyr and the group_by approach on a dataframe, I want to be able to apply a specific action according to the group name. The code bellow works, but I am not able to write it in a more esthetic way using dplyr. Can somebody help me to find a better solution ? Thank you Best regards Laurent df_test <- data.frame( x1=1:9, x2=1:9,

Folks, I'm running into something which looks like a bug in linearscan allocator. Of course I can't be 100% sure it's not some unobvious mistake on my part, so I'd like to hear your opinion. First, I attach two files -- LLVM asm and the asm for my target. The problem with assembler is: on line 171 it uses register gr2, which is copied from gr6 above, on line 161. The only

Hi everyone. I want to solve the following problem. I have a data.frame and I create a dotplot using lattice. Then I want to use the grid-package to create a combined graphic which contains the dotplot as well as a textplot() (using package gplots) of the data.frame next to the dotplot. Example code: library(lattice) library(grid) library(gplots) xx <- data.frame(f=factor(rep(1:5, each=5)),

Laurent: As I don't use dplyr, this won't help you, but I hope you and others may find it entertaining anyway. If I understand you correctly (and ignore this if I have not), there are a ton of ways to do this in base R, including using switch() along the lines you noted in your post. However, when the functions get sufficiently complicated or numerous, it may be useful to store them in a

Although there may well be many ways to do what is being asked for with the tidyverse, sometimes things are simple enough to do the old-fashioned way. The request seems to have been to do something to all rows in ONE specific group but was phrased in the sense of wanting to know which group your functionality is being called in. What grouping gains you is more worthwhile if you are interested in

When I create a lattice/Trellis type graph, I typically write a function that returns the graph, as in do.graph <- function(x, y, ...) { require(lattice) return(xyplot(y~x, ...)) } My question today is this: If I want two graphs on one page, one way of achieving it is to print the objects into defined areas, as in gr1 <- xyplot(rnorm(111) ~ runif(111)) gr2 <-

On Tue, 22 Jun 2004, Vladimir Prus wrote: > First, I attach two files -- LLVM asm and the asm for my target. The problem > with assembler is: on line 171 it uses register gr2, which is copied from gr6 > above, on line 161. The only predecessor of this basic block is jump on line > 90. The problem is that gr6 is not initialized in the interval from the > function entry till the

Dear expeRts, Why does na.blank=TRUE not replace the NA's in the following LaTeX table? x <- matrix(1:72, ncol=4, nrow=8) colnames(x) <- c("gr1.sgr1", "gr1.sgr2", "gr2.sgr1", "gr2.sgr2") rn <- apply(expand.grid(beta=c(0.25, 0.75), n=c(100, 500), d=c(10, 100))[, 3:1], 2, rmNames) x <- cbind(rn, x) # append columns containing the row labels

I was starting to write a note to a prospective R-user and came to the point of explaining how to get useful introductory information on R. After mentioning the Into and the FAQs I went on to try to explain how to use a lot of the contributed information. However I realised that there seems to be no direct way to get to Other Publications or Contributed Documenation. The best I have seen is

Dear all, I get an error message when I use polr() in MASS. These are my data: skugg grupp frekv 4 1 gr3 0 5 2 gr3 3 6 3 gr3 6 10 1 gr5 1 11 2 gr5 12 12 3 gr5 1 > > summary(polr(skugg ~ grupp, weights=frekv, data= skugg.cpy1.dat)) Error in optim(start, fmin, gmin, method = "BFGS", hessian = Hess, ...) :

Hello all, A really noddy question for you all: I''m trying without success to do some subhypothesis testing. Using simple anova model, with a toy dataset from a book. I have four factors A,B,C,D, and wish to test mu_C = mu_D. This is what I have tried: > contrasts(infants$group,how.many=1) <- c(0,0,1,-1) > contrasts(infants$group) [,1] A 0 B 0 C 1

Hello everyone, Im working with graphNEL object and want to extract all the nodes which have adjacent nodes with at least 20 nodes in between them. acc(graph, graphnodes) obviously provides a list for the accessable nodes of every node from a node and a number of the edges between them. Like this: $`hsa:8379` hsa:100131844 hsa:10393 hsa:246184 hsa:29882 hsa:29945 1

Hi, perhaps this is a stupid question, but i need some help about Helmert contrasts in the Cox model. I have a survival data frame with an unordered factor `group' with levels 0 ... 5. Calculating the Cox model with Helmert contrasts, i expected that the first coefficient would be the same as if i had used treatment contrasts, but this is not true. I this a error in reasoning, or is it

Chris Lattner wrote: > On Tue, 22 Jun 2004, Vladimir Prus wrote: > > First, I attach two files -- LLVM asm and the asm for my target. The > > problem with assembler is: on line 171 it uses register gr2, which is > > copied from gr6 above, on line 161. The only predecessor of this basic > > block is jump on line 90. The problem is that gr6 is not initialized in > >

http://bugzilla.mindrot.org/show_bug.cgi?id=938 Summary: "AllowGroups" option and secondary user's groups limit Product: Portable OpenSSH Version: 3.9p1 Platform: ix86 OS/Version: Linux Status: NEW Severity: major Priority: P2 Component: PAM support AssignedTo: openssh-bugs at

Dear R-bug-people I have encountered a problem with "unsplit", which I believe may be caused by a bug in the function. However, unexpericend with bug-reports I apologise if this is barely a user problem rather than a problem within R. The problem occurs if an object is split by several grouping factors with levels not occuring in the data, and using drop = TRUE. This may appear as

Hello Everyone, I am using an HP9000 with HPUX 9.04D with gcc 2.8.1. When running configure for samba 2.03 I receive the following error: checking statvfs function (SVR4)... no checking for 3-argument statfs function (DEC OSF/1)... no checking for two-argument statfs with statfs.bsize member (AIX, 4.3BSD)... yes checking if large file support can be enabled no checking configure summary