similar to: Problem reading from a file

Hi, I have the following table data: f1, f2, f3, f4. I want to compute the counts of unique combinations of f1-f4. In SQL I would just write: SELECT COUNT(*) FROM <table> GROUP BY f1, f2, ..,f4. How to do this in R? Thanks, Nick -- View this message in context: http://www.nabble.com/Group-by-in-R-tp23020587p23020587.html Sent from the R help mailing list archive at Nabble.com.

Hola! I have data in the form of a symmetric distance matrix, in the file I have recorded only the upper triangular part, with diagonal. The matrix is 21x21, and the file have row and col names, and some other information. I am trying to read with the following code (I tried many variations on it, but all give the same error). The items in the data file is delimited by white space. (Part

Hi all, I am trying to download, decompress and read a csv file. My code: myurl <- "ftp://ftp.ncbi.nih.gov/pub/geo/DATA/supplementary/series/GSE24729/GSE24729_MitoNuclear_suppl_male_stats.csv.gz" # myfile <- "GSE24729_MitoNuclear_suppl_male_stats.csv.gz" # download.file(myurl, destfile=myfile, mode="w") # mycon <- gzcon(gzfile(myfile,

I am trying to open an existing binary file, seek to a position in the middle, and then write one byte, while keeping the already existing data after that byte. It seems to me that I am unable to open a connection to a binary file in both read and write mode. I can open the "r+b" binary file connection and seek around, but I can't write to the file. And looking at the function

Hello, I am using the following code to create ppp files from csv data and map shape files, but I am getting some errors which I have been unable to fix by searching them online: library(spatstat) library(maps) library(maptools) NYC2<-readShapePoly("nybb.shp") # this is a map of the NYC boroughs without waterways and no census tract divisions (but it does include lines separating

I'm missing a HiddenStore option in OpenSSH, known from some ftp-server implementations like ProFTPd. Consider the following scenario: - A process PROCA is frequently polling the directory for a file called myfile.txt - Someone transfers this file via sftp or scp to the directory - While transfer is going on and the file is not completely written, PROCA reads in the file and removes is

I am working on implementing a new target for llvm. So far (to make debugging easier), I was compiling a C code into 2 steps: 1) generate the llvm file: clang -ccc-host-triple mytarget -emit-llvm -S myfile.c -o myfile.ll 2) generate the assembly file using llc -march=mytarget myfile.ll Sometimes, I add some verbosity for the 2nd command like "-print-after-all". Now, I'd like to

On Feb 16, 2011, at 11:08 AM, Damien Vincent wrote: > I am working on implementing a new target for llvm. > So far (to make debugging easier), I was compiling a C code into 2 steps: > 1) generate the llvm file: > clang -ccc-host-triple mytarget -emit-llvm -S myfile.c -o myfile.ll > 2) generate the assembly file using > llc -march=mytarget myfile.ll > > Sometimes, I add

I am reading dates in Excel2007 into R. Here are the functions I used: library(RODBC) channel<-odbcConnectExcel2007("myfile.xlsx") tmp<-sqlFetch(channel,"1",as.is=T) The dates in myfile.xlsx are all in this format: mm/dd/yyyy. But when I read it to R, some columns look like "yyyy-mm-dd 00:00:00", some columns look like "yyyy-mm-dd", and some

Hi, my details: Server: 3.2.3 Client: win2k8 When I try list contents of a shared directory through an ASP script (win2k8 is the client), it's take much time and on samba I saw many times (4 times for each file) the same error: "fill_share_mode_lock failed" I tried "shares mode = No" but no success It's the log: ...:49, 3]

Dear all, In R<=1.6.2 I usually used the following code (in DOS prompt) to run R in batch mode C:\documents> Rcmd BATCH myfile.R and I could see the results (including warning messages) in the file myfile.Rout In R.1.7.0 I'm experiencing the followings: (1) even if I type "Rcmd BATCH myfile.R myfile.Rout", no file myfile.Rout is created, but just a "&1" file

Hi All, I am writing a function that reads a file in myfile = file('myfile.raw', 'rb') . . . . . close(myfile) No matter what, I get the warning Warning message: closing unused connection 3 (myfile.raw) Since the whole thing is in a function, I'd like to avoid unecessary noise for the user, and I'd like to kill the warning -- without having to mess with global options.

I wanted to move a file from one directory to another because my co- worker didn''t like where it was being put by puppet. I went into puppet and changed the name parameter of the the file directive. I then created a new file directive to delete the old file, but I was wondering if there was a better way to do this. So, just to clarify, I went from: file {"myfile": name

Hi, I'm trying to load a .dll library into R 2.1.0 on Windows using the "dyn.load" function. The library is compiled with gcc 3.3.3 on cygwin 1.5.16. I compile and link: $ gcc -c myfile.cpp -o myfile.o [HRT] $ gcc -shared myfile.o -o myfile.dll [HRT] I then type, in the R console, > dynload("myfile.dll")[HRT] And R hangs. Any help appreciated. Thanks. Will

Hi all, I have a large file (1.8 GB) with 900,000 lines that I would like to read. Each line is a string characters. Specifically I would like to randomly select 3000 lines. For smaller files, what I'm doing is: trs <- scan("myfile", what= character(), sep = "\n") trs<- trs[sample(length(trs), 3000)] And this works OK; however my computer seems not able to handle

Hello all, I recently foudn myself wanting to view the basic blocks in the selection DAG as pure DAGs - so just as a list of edges, with no other information. I added the below code to the start of the " void SelectionDAGISel::CodeGenAndEmitDAG()" function. It creates a separate txt file for each basic block and gives a list of edges between nodes. The segment of code is below -

Hi everyone, I would like to improve my plot and I was wondering if someone can help me whith it. I'm trying this plot using two groups, but I want to choice the colors (the black and white circles) but I don't know how to change it from here. These are my sentences: myplot3d<- scatterplot3d(myfile$Temperature, acantarcthus$Salinity,myfile$Abundance, type="h",    color =

I am trying to build chromium and at this moment, They see some issues with internal one so recommended to use the flag -fno-integrated-as. Here is my exact build command (with -v and --save-temps): $ clang -Igen -I../../include -target aarch64-linux-gnu -march=armv8-a+crypto -fno-integrated-as --sysroot=./debian_jessie_arm64-sysroot -O2 -c MyFile.S -o MyFile.o -v --save-temps clang version

Hi all! I'm developing a shiny app and I have problems when I wanna write a .txt file. First of all, I change the directory in order to work in a temporal one: wd <- tempdir() setwd( wd ) res.path <- paste0( wd, "/OUT/" ) dir.create( res.path ) Just before calling the function that fails, I remove, if exist, the old files of the directory: file.remove( paste0(

Hello everybody, if I try to (r)bind a number of large dataframes I run out of memory because R wastes memory and seems to "forget" to release memory. For example I have 10 files. Each file contains a large dataframe "ds" (3500 cols by 800 rows) which needs ~20 MB RAM if it is loaded as the only object. Now I try to bind all data frames to a large one and need more than