similar to: R Help Question

Displaying 20 results from an estimated 8000 matches similar to: "R Help Question"

2008 Feb 06
4
inserting text lines in a dat frame
Hi Jim I am trying to prepare a bed file to load as accustom track on the UCSC genome browser. I have a data frame that looks like the one below. > x V1 V2 V3 1 chr1 11255 55 2 chr1 11320 29 3 chr1 11400 45 4 chr2 21680 35 5 chr2 21750 84 6 chr2 21820 29 7 chr2 31890 46 8 chr3 32100 29 9 chr3 52380 29 10 chr3 66450 46 I would like to insert the following 4 lines at the beginning:
2009 May 09
5
Reading large files quickly
I'm finding that readLines() and read.fwf() take nearly two hours to work through a 3.5 GB file, even when reading in large (100 MB) chunks. The unix command wc by contrast processes the same file in three minutes. Is there a faster way to read files in R? Thanks!
2011 Jul 11
1
problem finding p-value for entropy in reldist package
Hi, I am using the reldist package and having problems determining the p-value for the entropy value from the reldist function. I am able to properly determine the entropy value, but cannot figure out what function to use to find the p-value. I have tried using rpy, rpluy (which provides p-values for the polarization values) and investing the results from reldist(). Thus, far I cannot find the
2007 Feb 02
5
reading very large files
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
2010 Jul 25
3
X trouble in R on Ubuntu
Hello, As per the subject, I am unable to do the following: plot(1); The error message I get is ( as user postgres) No protocol specified Error in X11(d$display, d$width, d$height, d$pointsize, d$gamma, d$colortype, : unable to start device X11cairo In addition: Warning message: In function (display = "", width, height, pointsize, gamma, bg, : unable to open connection to X11
2007 May 24
2
object getConnection
Hi, I use the functions socketConnections() and getConnection() which are working fine. Thanks to the authors. After opening nicely some socketConnection, getConnection(3) returns something like : description class mode text opened can read can write "->127.0.0.1:7496" "socket" "wb" "binary" "opened" "yes"
2004 Oct 07
3
Read.Table Reading a Text file
Dear R users and Helpers I am beginner with using R and interested in carrying out certain task for my statistical research. I am reading data for a text file, which could contain data in following pattern x y 8 10 11 14 16 16 18 15 6 20 4 4 20 18 As per the example I have two columns and 7 rows of data in each. However is real life data situation I may not know how many columns are present
2008 Jul 03
1
Migrating from S-Plus to R - Exporting Tables
Does something like this get you close: x <- list() keys <- LETTERS[1:6] # create for (i in keys){ x[[i]] <- data.frame(a=1:5, b=1:5, c=1:5) } # output output <- file('tempxx.txt', 'w') for (i in keys){ write.table(i, row.names=FALSE, col.names=FALSE, file=output, quote=FALSE) write.table(x[[i]], file=output, quote=FALSE) } close(output) On Wed, Jul 2,
2007 Aug 28
3
data formatting: from rows to columns
Hi All, I have some data I need to write as a file from R to use in a different program. My data comes as a numeric matrix of n rows and 2 colums, I need to transform each row as a two rows 1 col output, and separate the output of each row with a blanck line. Foe instance I need to go from this: V2 V3 27 2032567 19 28 2035482 19 126 2472826 19 132 2473320 19 136 2035480 135
2021 Jan 24
1
Wiki Access for Cloud SiG
On Sun, Jan 24, 2021 at 1:12 PM Amy Marrich <amy at redhat.com> wrote: > Ok updated to Camel Case - AmyMarrich. I'll let the others know as well. > > Thanks, > > Amy > > *Amy Marrich* > > She/Her/Hers > > Principal Technical Marketing Manager - Cloud Platforms > > Red Hat, Inc <https://www.redhat.com/> > > amy at redhat.com > >
2021 Jan 25
1
Wiki Access for Cloud SiG
Akemi, The usernames for YatinKarel and JavierPena should be corrected now as well. Thanks for all your assistance, Amy *Amy Marrich* She/Her/Hers Principal Technical Marketing Manager - Cloud Platforms Red Hat, Inc <https://www.redhat.com/> amy at redhat.com Mobile: 954-818-0514 Slack: amarrich IRC: spotz <https://www.redhat.com/> On Sun, Jan 24, 2021 at 5:52 PM Akemi
2021 Jan 24
1
Wiki Access for Cloud SiG
On Sat, Jan 23, 2021 at 2:38 PM Amy Marrich <amy at redhat.com> wrote: > > On Fri, Jan 22, 2021 at 7:58 PM Akemi Yagi <amyagi at gmail.com> wrote: > >> On Thu, Jan 21, 2021 at 11:50 AM Amy Marrich <amy at redhat.com> wrote: >> >>> I'd like to request access to >>> https://wiki.centos.org/SpecialInterestGroup/Cloud for the following
2007 Apr 14
3
HiddenStore option may be useful
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
2010 Jul 08
3
One account can access samba, another can't.
My wife and I each have our own workstation dual-booting WinXP and Gentoo Linux. We also have a third which runs Gentoo all the time. I wanted to set up samba on the third box and provide some extra storage space for both our Windows installs. It worked for a few days, then all of a sudden it stopped letting my account (michael) in while still letting my wife's account (amy) use the share.
2003 Apr 25
2
Open an r+b file connection on Windows
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
2021 Jan 23
1
Wiki Access for Cloud SiG
Akemi, I just verified my userid (amymarrich) works for the wiki and I have reached out to Javier and Yatin to confirm their userids. Thanks, Amy *Amy Marrich* She/Her/Hers Principal Technical Marketing Manager - Cloud Platforms Red Hat, Inc <https://www.redhat.com/> amy at redhat.com Mobile: 954-818-0514 Slack: amarrich IRC: spotz <https://www.redhat.com/> On Fri, Jan
2021 Jan 24
1
Wiki Access for Cloud SiG
Ok updated to Camel Case - AmyMarrich. I'll let the others know as well. Thanks, Amy *Amy Marrich* She/Her/Hers Principal Technical Marketing Manager - Cloud Platforms Red Hat, Inc <https://www.redhat.com/> amy at redhat.com Mobile: 954-818-0514 Slack: amarrich IRC: spotz <https://www.redhat.com/> On Sun, Jan 24, 2021 at 1:22 PM Akemi Yagi <amyagi at gmail.com>
2011 Dec 08
1
partial duplicates of dataframe rows, indexing and removal
Hello. I am trying to remove from my dataframe, those rows in which the first 7 columns are duplicated even if subsequent columns make those rows unique. df<-data.frame(id=rep(c('amy','bob','joe') , each=5), pet1=sample(LETTERS[1:3],15, replace=T), pet2=sample(LETTERS[1:3],15, replace=T), pet3=sample(LETTERS[1:5],15, replace=T)) >df id pet1 pet2
2013 Jan 29
1
points rejected as lying outside the specified window
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
2011 Feb 16
2
[LLVMdev] verbosity while invoking clang
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