Displaying 20 results from an estimated 100 matches similar to: "Reading large files in R"
2003 Sep 09
2
Making R packages (Unix)
Hi:
I have have taken over from a colleague who
prepared an R package and failed to build it on
Windows. I am doing this with unix as I am a mac
user. Below is the output I get when I use the
build command:
[gattuso:unix/R/CO2.Rcheck] gattuso% R CMD build CO2
* checking for file 'CO2/DESCRIPTION' ... OK
* preparing 'CO2':
* checking whether 'INDEX' is up-to-date ...
2002 Jan 18
2
length of dimnames???
Hi:
I have made a lot of progress reading and manipulating large data
files, thanks to the help of several of you. I am now stuck with
writing the final file with the following error (see also the full
transcript below):
Error in as.matrix.data.frame(x) : length of dimnames[2] not
equal to array extent
I do not know what it means and could not find how to get around that
in the manual nor
2003 Sep 09
6
Making R packages
Hi:
I am posting this message for a colleague who has
a lot of trouble to build an R package on
Windows. He did not find a solution to his
problems on the R-help archives and hopes that
one of the R gurus will be able to help.
He has a directory "CO2" which should contain all
the required files and directories:
DATA:
DESCRIPTION
MAN:
R:
README
SRC:
The following command is
2002 Aug 19
2
Help with Lattice
Hi:
I have started to use Lattice two days ago and find that it is an
outstanding package. I am, however, stumbling on two problems,
despite the fact that I have read the help pages as well as two pdf
documents on Trellis that I found on the web.
1- I want to remove the ticks on the top and right sides of the
panels and did not see any option in "scales" to do so.
2- I would like
2002 Jan 02
1
Combining files
Hi:
I am a very recent user of R 1.40 for MacOSX and went through the
help files but did not not find the function that I am looking for.
I have two comma separated files which I want to partly combine.
File 1 has 49670 lines and 26 columns (separated by commas) and looks
like this:
...
2002 Aug 21
2
More help with Lattice
Hi:
Thanks a lot to Deepayan Sarkar, author of lattice I think, who
solved my first query. I am afraid that I have another one.
I am plotting several mutipanels boxplots (with one conditioning
variable) on one page. The x, y and conditioning variable are all
continuous variables. The x and conditioning variables are
transformed to shingles before being plotted. The plot looks nice but
there
2006 Aug 24
1
Lattice symbol size and legend margins
Hi:
I am using the following command:
xyplot(dat6$CO3*1e6 ~ dat6$irradiance, data=dat6, group=ref,
xlab=list(label=expression(paste("Irradiance (", mu, "mol photons",
m^"-2", " ", s^"-1", ")")), cex=1.3),
ylab=list(label=expression(paste("Carbonate concentration (x ", 10^"6",
" ", kg^"-1",
2007 Jul 23
1
Error using Rd2dvi on OSX
Hi,
I run R 2.5.1 on Mac OS 10.4.10 and fail to build a package manual.
Below is the transcript. The problem is a "pdflatex: command not found"
error but I think that I have a fully working latex install (installed
with iInstaller) as I use TeXShop with no problem.
Could someone help?
Jean-Pierre
-----------------------------------------------------------------------------
2005 Jul 26
1
error with scan
Hi:
I am trying to read a large (500000+ lines) with scan() as read.table
is unable to read it.
I get a strange error (below) which says that 'a real' was expected
and '5' was read. Can someone help?
Thanks,
jp
> type=list(a=0,b=0,c=0,d=0,e=0,f="",g=0,h=0,i=0)
> tmp2 <- scan(file="tmp2.txt", what=type, sep=",",
2018 Jun 03
1
[Bug 106793] New: [NV138] bus: MMIO read of 00000000 FAULT at 409800 [ TIMEOUT ]
https://bugs.freedesktop.org/show_bug.cgi?id=106793
Bug ID: 106793
Summary: [NV138] bus: MMIO read of 00000000 FAULT at 409800 [
TIMEOUT ]
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
2007 May 15
2
Optimized File Reading with R
Dear All,
Hope I am not bumping into a FAQ, but so far my online search has been fruitless
I need to read some data file using R. I am using the (I think)
standard command:
data_150<-read.table("y_complete06000", header=FALSE)
where y_complete06000 is a 6000 by 40 table of numbers.
I am puzzled at the fact that R is taking several minutes to read this file.
First I thought it may
2005 Aug 12
1
quotes
Hi:
I have been struggling with gsub to no avail and am seeking help from
the list.
I want to make a vector of the string "one, two, three" and have
tried to:
- replace each comma by ","
- add " at the beginning of the string
- add " at the end of the string
to issue the command:
col.names <- c("one", "two",
2019 Feb 03
1
Inefficiency in df$col
While doing some performance testing with the new version of pqR (see
pqR-project.org), I've encountered an extreme, and quite unnecessary,
inefficiency in the current R Core implementation of R, which I think
you might want to correct.
The inefficiency is in access to columns of a data frame, as in
expressions such as df$col[i], which I think are very common (the
alternatives of
2006 Dec 18
1
Memory problem on a linux cluster using a large data set
Hello,
I have a large data set 320.000 rows and 1000 columns. All the data has the values 0,1,2.
I wrote a script to remove all the rows with more than 46 missing values. This works perfect on a smaller dataset. But the problem arises when I try to run it on the larger data set I get an error “cannot allocate vector size 1240 kb”. I’ve searched through previous posts and found out that it might
2007 Jan 10
1
Fw: Memory problem on a linux cluster using a large data set [Broadcast]
Hi
I listened to all your advise and ran my data on a computer with a 64 bits procesor but i still get the same error saying "it cannot allocate a vector of that size 1240 kb" . I don't want to cut my data in smaller pieces because we are looking at interaction. So are there any other options for me to try out or should i wait for the development of more advanced computers!
2002 Sep 13
4
tcltk documentation
> Dear all,
> I am looking for basic examples of the use of tcltk in R.
> Thank you in advance for any information, R-script, ...
Most of us started from the handful of examples you can see via
demo("tcltk")
There are also some good examples in the mailing list archives
though some of the R to Tcl/Tk interfaces changed slightly in
recent releases.
--
According to the
2004 May 12
0
New tutorial (Forgot the address)!
Sorry guys. I was in a hurry and forgot to include the url.
Just click <a
href="http://wxruby.rubyforge.org/wiki/wiki.pl?Frames_(Part_1)">here</a>
or enter in this url:
http://wxruby.rubyforge.org/wiki/wiki.pl?Frames_(Part_1)
Ugh!
Robert
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2007 Mar 05
1
Error in La.svd(X) : error code 1 from Lapack routine 'dgesdd'
Dear R helpers,
I am working with R 2.4.1 GUI 1.18 (4038) for MacOSX. I have a matrix of
10 000 genes and try to run the following commands:
> model.mix<-makeModel (data=data, formula=~Dye+Array+Sample+Time,
random=~Array+Sample)
> anova.mix<-fitmaanova (data, model.mix)
> test.mix<-matest (data, model=model.mix, term="Time", n.perm=100,
test.method=c(1,0,1,1))
2006 Dec 21
1
Memory problem on a linux cluster using a large data set [Broadcast]
Thank you all for your help!
So with all your suggestions we will try to run it on a computer with a 64 bits proccesor. But i've been told that the new R versions all work on a 32bits processor. I read in other posts that only the old R versions were capable of larger data sets and were running under 64 bit proccesors. I also read that they are adapting the new R version for 64 bits
2017 Mar 16
52
[Bug 100228] New: [NV137] unknown chipset (137000a1)
https://bugs.freedesktop.org/show_bug.cgi?id=100228
Bug ID: 100228
Summary: [NV137] unknown chipset (137000a1)
Product: xorg
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: nouveau