similar to: Count number of zeros in a collumn

Hi experts, I am trying to write a very flexible method that allows me to add a new column to an existing data frame. This is what I have so far: add.column <- function(df, new.col, name) { n.row <- dim(df)[1] length(new.col) <- n.row names(new.col) <- name return(cbind(df, new.col)) } df <- NULL df <- data.frame(a=c(1,2,3)) df # corect: added NA to new collumn df <-

My question is twofold. Part 1: My data looks like this: (example set, real data has 2*10^6 rows) binary<-c(1,1,1,0,0,0,1,1,1,0,0) Chromosome<-c(1,1,1,1,1,1,2,2,2,2,2) start<-c(12,17,18,20,25,36,12,15,16,17,19) Table<-cbind(Chromosome,start,binary) Chromosome start binary [1,] 1 12 1 [2,] 1 17 1 [3,] 1 18 1 [4,] 1

hello guys, I need to do a BLUP in the simplest model y = Xm + Zg + e however I have missing data in the analysis which I can?t consider as 0(zero). So I need to generate the matrix X'Z, Z'X and Z'Z step by step; I can?t use crossprod(x) #neither X'X <- t(x)%*%x because I should skip the elements with missing data in the matrix I?ll try to be more clear, supposing a matrix x

I have to deal with data frames that contain multiple entries of the same (based on an identifying collumn 'id'). The second collumn is mostly corresponding to the the id collumn which means that double entries can be eliminated with ?unique. a <- unique(data.frame(timestamp=c(3,3,3,5,8), mylabel=c("a","a","a","b","c"))) However

Dear all, I am attempting to export my results (data.frame) created with the help of a number of you to Excel. In the procedure my column structure is however lost and all results are placed together into the first Excel column. I have tried: write(), write.table(), write.matrix(), export() and have the same results. I Have checked the import/export FAQ and did a Google search to no avail. Any

was trying to match different matrices of different lengths with in the first collumn date and time info (yearmonthdayhourminute). the routine needs to return NA?s where data of either of the matrices is non existent. have been trying the following: #### x <- c(200112030003, 200112030004, 200112030005, 200112030006) y <- c(0.1, 1, 1.1, 1.5) a <- c(200112030004, 200112030005,

Reply to sender Reply to all Reply to folder Forward Move/Copy Delete Read previous item Read next item Get help information on the current window From: McMurtry, Benjamin G. To: 'r-help-request at stat.math.ethz.ch' Cc: Subject: Table Help Sent: 5/24/2005 4:33 PM Importance: Normal I have a very large table that I want to add some of the certain rows. The table is

Dear all, I have a data.frame like the sample below, and I would like to expand my data.frame using "population" variable. So, for each line of my data.frame I would like that the new data.frame have many rows as the population collumn. place<-c("place1", "place2", "place3", "place4", "place5") population<-c(100,200,300,50,30)

Hello,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> I would like to create a histogram from a data collumn consisting of 4 classes (0; 0.05;0.5;25;75). Due to the difference in scale the classes 0;0.05 and 0.5 are displayed within one combined bin by default with the code:Hist(x, scale="percent",

I have a set of labels arranged along a timeframe in a. Each label has a timestamp and marks a state until the next label. The dataframe a contains 5 such timestamps and 5 associated labels. This means, on a continious scale between 1-100, there are 5 markers. E.g. 'abc' marks the timestampls between 10 and 19, 'def' marks the timestamps between 20 and 32, and so on. a <-

I am getting failure of build and check, for an Rd file that has a long argument list. Guess diagnosis: a quoted string beyond a certain point in the argument list is fatal. Example: Use the function below, create an Rd file for it with prompt(). Move the .Rd file to the man directory (no need to edit it) and try building dart.control <- function(server=c("production",

Hi, I'm a R beginner. I have data of this form: user_id, brand_id1, brand_id2, ..... for example: 1 , 45 , 32, 45, 23 2 , 34 4, 11, 43, 45 I'm looking for the right procedure to be able to cluster users. I am especially interested to know which functions to use at each step. I am currently able to load the data in a data frame, each row's name being the user id. #extract user

Hello I am novice to R and i was learning how to do a scatter plot with R using an example from a website. My setup is iMac with Mac OS X 10.8.3, with R 3.0.1, default install, without additional packages loaded I created a .csv file in vim with the following content userID,user,posts 1,user1,581 2,user2,281 3,user3,196 4,user4,150 5,user5,282 6,user6,184 7,user7,90 8,user8,74 9,user9,45

I have a local library with functions that interrogates an institution-specific web API, so is not of interest to anyone outside of Mayo. For some reason the R CMD INSTALL command fails. See below: Build the library, then install it. tmt-local2127% R CMD build dart * checking for file ?dart/DESCRIPTION? ... OK * preparing ?dart?: * checking DESCRIPTION meta-information ... OK * installing

I have a local library 'dart' that imports "httr". It has routines that access central patient data such as birth date, so it is heavily used locally but of no interest to anyone else. The httr library (and 300 others) are in a shared directory, referenced by everyone in the biostatistics group via adding this location to the .libPaths in their default .Rprofile.

How would I make a histogram using R from a table in excel that has 4 variables, but I only want to use 2 of the columns to make the histogram? [[alternative HTML version deleted]]

Hi All: I am building the torture/smbtorture for samba-4.0.0alpha17. After build, I am running the test in another environment. I not only need to copy the binary smbtorture, I also need to copy the shared libraries. This is HUGE inconvenient for us. Could somebody tell me how to build the binary using static linked libraries? Thanks very much Peixing libpthread.so.0 =>

I do have some data of dim 100*3 (i.e 100 rows and 3 columns ) stored in a txt file. I want to read the data into R, Perform the same operation in each row and store the result in a forth column( that I should create). I do not know how I can create a forth column to store the result of the operation for each row? -- View this message in context:

Hi All, I'm working on a project converting Dart to llvm. Dart uses a relocating GC but additionally uses pointer tagging. The first bit of a pointer is a tag. For integers a '0' bit is used and for pointers to objects a '1' bit is used. V8 apparently uses a similar technique. Generated code may need to check which bit is used when this information isn't statically known.

Hi All, Has any one got an idea of how to make clients automatically find the BDC when the PDC is stopped. Both PDC and BDC are running by Samba authenticating again a LDAPSAM backend replicated on both the PDC with master LDAP database and BDC with replicated LDAP database. But when I stop PDC the clients are not detecting the BDC broadcast. I can see that the replication is of