similar to: 'combinations' in gtools and stack overflow

I have a problem with permutations functions in R I just started using R so maybe it is an easy question I need to obtain all the 9.somthingExp 157 permutations that can be given from the number from 1 to 100 I wrote the following commands: > library(gregmisc) >options(expressions=1e5) cmat <- combinations(300,2) dim(cmat) # 44850 by 2 >permutations(n=100, r=100)

Hello, I've recently transitioned to using R in Linux. My OS/installation versions are: $ Red Hat Enterprise Linux AS release 4 (Nahant Update 6) $ Linux lx-chgmqsd05 2.6.9-67.0.1.ELsmp #1 SMP Fri Nov 30 11:57:43 EST 2007 x86_64 x86_64 x86_64 GNU/Linux I am trying to create a repository of packages under ~/R/library which I've created since I do not have admin access on my system. From my

Hello, I've recently transitioned to using R in Linux. My OS/installation versions are: $ Red Hat Enterprise Linux AS release 4 (Nahant Update 6) $ Linux lx-chgmqsd05 2.6.9-67.0.1.ELsmp #1 SMP Fri Nov 30 11:57:43 EST 2007 x86_64 x86_64 x86_64 GNU/Linux I am trying to create a repository of packages under ~/R/library which I've created since I do not have admin access on my system. From my

Dear R-list members, I have just downloaded R version 2.11.0. Then I installed package gdata. At the end of the installation, a warning message said that package gtools could not be found. Package gdata was, after the installation, included in the "Package Index" in the help files. Messages during installation (which was made through the menu Packages / Instal package(s), choosing the

Hello, I am attempting to install the gtools package, so that I can compute the permutations of a set. However, I having difficulties. My problems are: 1) When I use the GUI "Install package(s)" command, the package "gtools" does not appear in my list. 2) I dowloaded the package from http://cran.r-project.org/web/packages/gtools/ . I Then used the GUI command

Full_Name: Ebi Hal Version: R-2.7.2-1 OS: Fedora core 9 Submission from: (NULL) (129.215.170.238) I tried to install gplots by running R> install.packages("gplots") but the process failed while installing "gtools" with the following error message: * Installing to library '/usr/lib64/R/library' * Installing *source* package 'gtools' ... ** libs gcc -m64

Hi all, I have a problem using rdirichlet{gtools}. For Dir( a1, a2, ..., a_n), its mode can be found at $( a_i -1)/ ( \sum_{i}a_i - n)$; The means are $a_i / (\sum_{i} a_i ) $; I tried to study the above properties using rdirichlet from gtools. The code are: ############## library(gtools) alpha = c(1,3,9) #totoal=13 mean.expect = c(1/13, 3/13, 9/13) mode.expect = c(0, 2/10, 8/10) #

split any mixed columns into letter and number columns and then order can be used on that: DF <- data.frame(x = c("a10", "a2", "a1")) o <- do.call("order", transform(DF, let = gsub("\\d", "", x), no = as.numeric(gsub("\\D", "", x)),

x <- c( "a1", "a10", "a2" ) y <- c( "b10", "b2", "a12", "ca1" ) DF <- expand.grid( x = x, y = y ) # randomize set.seed( 42 ) DF <- DF[ sample( nrow( DF ) ), ] # missing from gtools mixedrank <- function( x ) { seq.int( length( x ) )[ gtools::mixedorder(x) ] } o <- do.call( order, lapply( DF, mixedrank ) )

1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call like the order function does This is tangential, but do.call(order, mydataframe) is not safe to use in a general purpose function either - you need to remove the names from the second argument: > d <- data.frame(method=c("New","New","Old","Old","Old"),

??? > y <- sort( c("a1","a2","a10","a12","a100")) > y [1] "a1" "a10" "a100" "a12" "a2" > mixedsort(y) [1] "a1" "a2" "a10" "a12" "a100" **Please read the docs!** They say that mixedsort() and mixedorder() both take a **single

Hi, Searching for functions that would order strings that mix characters and numbers in a "natural" way (ie, "a1 a2 a10" instead of "a1 a10 a2"), I found the mixedsort and mixedorder from the gtools package. Problems: 1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call like the order function does 2- gtools has not been updated in 2.5

Error: could not find function "hier.part" things I have tried: 1. reinstall R (lastest version, on windows XP) 2. install package "gtools" 3. include: library(gtools) require(gtools) 4. how I call this function: hier.part(c$Y, xdata, fam = "gaussian", gof = "Rsqu") 5.when I try to check what's in the package "gtools", I get (hier.part is

I am working with the combinations function (available in the gtools package).  However, rather than store all of the possible combinations I would like to check each combination to see if it meets a certain criteria.  If it does, I will then store it. I have looked at the combinations code but am unsure where in the algorithm I would be able to operate on each combination. Thanks!

Hello, We have submitted the updated version of gdata, gmodels, gplots and gtools to CRAN. Summary of the changes is attached at the end. Best, Nitin ______________________ Nitin Jain, PhD <nitin.jain at pfizer.com> Non Clinical Statistics Pfizer, Inc. (Groton, CT) Bldg: 260, # 1451 Ph: (860) 686-2526 (Office) Fax: (860) 686-6170 Brief description of changes: CHANGES IN GDATA 2.1.2

Hello, We have submitted the updated version of gdata, gmodels, gplots and gtools to CRAN. Summary of the changes is attached at the end. Best, Nitin ______________________ Nitin Jain, PhD <nitin.jain at pfizer.com> Non Clinical Statistics Pfizer, Inc. (Groton, CT) Bldg: 260, # 1451 Ph: (860) 686-2526 (Office) Fax: (860) 686-6170 Brief description of changes: CHANGES IN GDATA 2.1.2

Hello all, I am trying to create a matrix of 1s and -1s without any repetitions for a specified number of columns. e.g. 1s and -1s for 3 columns can be done uniquely in 2^3 ways. -1 -1 -1 -1 -1 1 -1 1 -1 -1 1 1 1 -1 -1 1 -1 1 1 1 -1 1 1 1 and for 4 columns in 2^4 ways and so on. I finally used the function combn([0 1],3) that I found at the following link

Hi I just installed the gmodels package and the installation was successful but when I was trying to load the library I got an error (see below). Interesting, yesterday I wrote to the maintainer of RSQLite apckage because I got the same error. Does somebody knows what is going on ?? thanks, Mayte library(gmodels) Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load

Hi I just installed the gmodels package and the installation was successful but when I was trying to load the library I got an error (see below). Interesting, yesterday I wrote to the maintainer of RSQLite apckage because I got the same error. Does somebody knows what is going on ?? thanks, Mayte library(gmodels) Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load

I would appreciate any suggestions on which function to use to write subsequent functions analysing combinations of treatments. This refers to experimental trials of medical treatments. I want to write routines to analyse various comparisons (combinations) So .... if 5 treatments are available (t01, t02, t03, t04 and t05) I want to write a general routine that works out all possible