similar to: Combinations with two part column

Dear R-helper, How could I count only some variable was exist after running sample (random) function. For example, > testx <- factor(c("Game","Paper","Internet","Time","Money")) > for(i in 1:2) { + x <- sample(testx,replace=TRUE) + print(x) + } [1] Money Money Time Internet Time Levels: Game Internet

Dear all, suppose I have a vector with elements as: Vec <- c(2,3,4,5,6) Now I want to have all possible combination of length 3 using those elements and without any repetition. Like, I want to have 1 possibility like 2-3-4 but not 3-2-4. Can somebody guide me how to achieve that in R? Thanks for your help.

Dear all, I would like something simple to do in R that I do not know how I should search for it. Let's say that I have a list of a<-c(1,2,3,4,5) b<-(6,7,8) and I want to get back all their possible cominations like 1,6 1,7 1,8 2,6 2,7 2,8 3,6 3,7 3,8 and so on. How I can do that? B.R Alex [[alternative HTML version deleted]]

Dear UseRs, MY PROBLEM IS A SMALL PIECE OF A REAL BIG AND A COMPLICATED PROBLEM. IF I DELIBERATE IN A VERY SIMPLE WAY THEN ALL I WANT IS TO PUT ALL THE POSSIBLE COMBINATIONS OF 75 DISTANCE MATRICES (BY TAKING 4 MATRICES, MORE COMMONLY 75C4), in the following equation. t<-as.matrix((MAT1)^2+(MAT2)^2+(MAT3)^2+(MAT4)^2+,upper=T,diag=T)) Then "1215450" values of "t"(one for

Dear all, I have a data file with 3 variables (x1, x2, x3) where variable x1 have data that consists of several numbers separated by commas. id name x1 x2 x3 aa101 1,4,5 2 1 aa102 1,2,5 1 2 aa103 1,2,5 1 1 aa104 1,2,3 1 2 aa105 1,5 2 2 aa106 1,2,5 2 2 aa107 1,2,5 2 1 aa108 1,4,5 2 1 aa109 1,2 1 2 aa110 3,5 1 2 I want to count the number of data for each

Hi, I would like to know if it's ok to use .Internal(inspect(x)) in order to detect vector copying. Take for example the following silly code: f <- function() { x = seq(10) print(.Internal(inspect(x))) for(i in seq(10)) { x[i] <- x[i] + 1 print(.Internal(inspect(x))) } } The output of f() was: @bd7acf0 13 INTSXP g0c4 [NAM(1)] (len=10, tl=0) 1,2,3,4,5,... [1] 1 2

Dear All I have a problem with the height of the boxes in the key in the following. (The text is over 2 lines to accentuate the problem of no space between the rectangles.) Is there an easy way to put a space between the rectangles; size controls the width but there appears to be nothing for the height? xyplot(1~1, key = list(corner = c(0.8,0.8),

Dear list, I have some difficulty in manipulating list elements. More specifically, I am performing svm regression and have a list of lists, called pred.svm. The elements of the second list are 3D arrays. Thus I have pred.svm[[i]][[j]], with 1<=i<=5 and 1<=j<=20. I want to take the sum of the elements a specific array dimension across all j, for one i. Mathematically speaking, I want

Hi, I want to save a array (say, array[6,7,8]) write a cvs file. How can I do that??? can I write in one file? if I could not write in one file, i want to use a loop to save in different files (in the matrix[6,7,8], should be 8 csv files), such as the filename structure should be: file ="filename" +str(i) +"." +"csv" Many thanks. Dong [[alternative HTML version

Hello, Is there a way to get a single TRUE or FALSE statement from comparing two vectors? For example, c(1,2,3) == c(1,2,3) produces TRUE TRUE TRUE where I would like it to produce only TRUE for use in an if statement. Likewise, when two vectors are not exactly identical (in all elements) I would like a single FALSE result, as opposed to c(1,2,3) == c(1,2,5) TRUE TRUE FALSE Any ideas?

Hi, I was trying to schedule a worker to run during the midnight hour like this: :schedules: :collector: :process_something: :trigger_args: 30 * 0 * * 2,3,4,5,6 When I try to start backgroundrb, the "collector" worker failed to start up and I find this in backgroundrb_server.log: /home/mengkuan/apps/testrailsapp/current/vendor/plugins/backgroundrb/

Hi, I want to save an array(say, array[6,7,8]) write a cvs file. How can I do that??? can I write in one file? if I could not write in one file, i want to use a loop to save in different files (in the array[6,7,8], should be 8 csv files), such as the filename structure should be: file ="filename" +str(i) +"." +"csv" Many thanks. [[alternative HTML version

I want to include missing values in my barplot to get the correct x-axis, for example, x <- c(1,2,3,4, 9) y <- c(2,4,6,8,18) barplot(y) The above looks wrong because the last height in y should be a long way over. So I want to do something like... x <- c(1,2,3,4,5,6,7,8, 9) y <- c(2,4,6,8,0,0,0,0,18) barplot(y) However... I am actually using barplot2 to use the

Good moorning, yesterday, i asked for how we can import data into R i found that it is necessary to make the file in csv format then use L<- read.csv2("path of file") now i see that the dimension of my table importing into R is 1 colonne (i have realy 20) and (655555) the number of all my lines in the excel file (i want to have only the 2600 lines in my table) Also, when i say to do

The Lattice auto.key argument has a bug in R.12.2. R version 2.12.2 (2011-02-25) Platform: i386-pc-mingw32/i386 (32-bit) .... other attached packages: [1] lattice_0.19-17 loaded via a namespace (and not attached): [1] grid_2.12.2 If I set up my plot parameters as require(lattice) superpose.line.settings <- trellis.par.get("superpose.line") str(superpose.line.settings)

Dear All, I wonder if there is any R function to generate a sequence of vectors from existing ones. For example: x 1<- c(1,2,3) x2 <- c(4,5) x3 <- c(6,7,8) The desired output is a list of all 3*2*3 = 18 possible combinations of elements of x1,x2 and x3. One element for example is (1,4,6). Many thanks in advance, Bernard

Hello R-User I have a table as tab-delimited textfile (291 rows, 83 columns). The first row are labels and the first line the variable names. I used the following code several times with different similar tables and it always worked. But now: setClass("of") setAs("character", "of", function(from) as.ordered(from)) Classe82<-cclasses <-

I''ve upgraded to Rails 1.1.2, and I''m trying to push this change through to our build server (Linux/Oracle) and we are getting some errors in the unit tests using Oracle. Looking at the data in the tests reveals a precision problem. Looking at the tables tells the whole story. My development database contains this table: SQL> describe dls_grids; Name

Currently, facter returns the kernel version as both the kernel and operatingsystemrelease facts. I would like to change that so that on Fedora, operatingsystemrelease is the release number (5,6,7 etc.) or ''Rawhide'' ... are there any objections to making that change ? David

Hello, everyone! I have spent two hours to get what I wanted in a simple situation and have not been successful. The set up is extremely simple x = c(1,2,4,8) y = c(1,2,3,4) plot(x, y) What I need, however, is for the 4 points of 1,2,4,8 to be spaced evenly, not by their numerical scale. Also, there should not be any other values such as 5,6,7 marked on the axis. So I tried the following x =