Displaying 20 results from an estimated 4000 matches similar to: "Feature request: copy attributes in gzcon"
2020 Jun 29
0
A warning in gzcon but not in gzfile
Hi all,
I used `gzfile` and `gzcon` to read a compressed file but I found that
`gzcon` gave me a different result than `gzfile`. It seems like the `gzcon`
does not handle the data correctly. I have posted an example below. In the
example, a portion of a compressed file is downloaded from Google Cloud as
a raw vector, and the data is saved into a temp file. If I use ` gzfile` to
read the file, it
2001 Jul 30
0
Remote controlling R via sockets
Many thanks to the R core team for their work on R connections. I was delighted to discover that it is now possible to remote-control R-1.3.0 via a socket connection - something which Brian Ripley noted was not yet possible with R-1.2.0 back in January 2001 in the first R News newsletter. How? Just substitute source() for readLines() in last few lines of the example for a socket connection given
2016 Oct 30
0
closeAllConnections() can really mess things up
This is what I get on R 3.3.1 on Linux:
> con1 <- textConnection("foo1", open = "w")
> print(con1)
description class mode text
"foo1" "textConnection" "w" "text"
opened can read can write
"opened"
2002 Jan 26
1
Trouble with contrasts
Greetings,
I have a nagging problem with contrasts and I can't seem to resolve it.
A factor exists with four levels (lib1, lib2, con1, con2) and when I
check the contrasts or set the contrasts to any of the prespecified
ones, I do not get the exact contrasts necessary to test the
theoretically relevant ones. I need orthogonal contrasts that look just
like this matrix:
con1 con2
2009 Mar 02
1
initial gradient and vmmin not finite
Dear Rhelpers
I have the problem with initial values, could you please tell me how to solve it?
Thank you
June
> p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2)))
Error in maxRoutine(fn = logLik, grad = grad, hess = hess, start = start, :
NA in the initial gradient
> p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2),method="BFGS"))
Error in optim(start, func, gr =
2011 Mar 11
0
is gzcon w/ urls not implemented or used differently on linux?
I wrote some code which reads a gzipped text file directly from the web with gzcon(url()) and it works perfectly on OSX, but I cannot get it to work on linux at all, trying several different R versions and linux distributions. Any ideas?
Here's an example of my code:
z <- gzcon(url("ftp://ftp-private.ncbi.nlm.nih.gov/pubchem/.fetch/8897497837079742771.sdf.gz"))
sdf <-
2009 Dec 02
0
[Fwd: Re: Adding and Multiplying two Unevaluated Expressions]
-------- Original-Nachricht --------
Betreff: Re: [R] Adding and Multiplying two Unevaluated Expressions
Datum: Tue, 01 Dec 2009 23:49:39 +0100
Von: Benjamin M?ller <ben_mueller.bm at web.de>
An: Rolf Turner <r.turner at auckland.ac.nz>
Referenzen: <20091201144125.316310 at gmx.net>
<8E40E49F-E8FC-4FBD-8CC5-93789FFB0E53 at auckland.ac.nz>
This works fine for your
2009 Jan 28
3
initial value in 'vmmin' is not finite
Dear r helpers
I run the following code for nested logit and got a message that
Error in optim(c(0, 0, 0, 0, 0.1, -2, -0.2), fr, hessian = TRUE, method = "BFGS") : initial value in 'vmmin' is not finite
What does this mean? and how can I correct it?
Thank you
June
> yogurt = read.table("yogurtnp.csv", header=F,sep=",")> attach(yogurt)>
2010 Aug 13
1
decision tree finetune
My decision tree grows only with one split and based on what I see in
E-Miner it should split on more variables. How can I adjust splitting
criteria in R?
Also is there way to indicate that some variables are binary, like variable
Info_G is binary so in the results would be nice to see "2) Info_G=0"
instead of "2) Info_G<0.5".
Thank you in advance!
And thanks for Eric who
2007 Dec 08
1
FW: R memory management
Hi,
I'm using R to collect data for a number of exchanges through a socket
connection and constantly running into memory problems even though task I
believe is not that memory consuming. I guess there is a miscommunication
between R and WinXP about freeing up memory.
So this is the code:
for (x in 1:length(exchanges.to.get)) {
tickers<-sqlQuery(channel,paste("SELECT Symbol
2016 Apr 18
2
lists and rownames
I'm doing some string manipulation on a vector of file names, and noticed
something curious. When I strsplit the vector, I get a list of
character vectors.
The list is numbered, as lists are. When I cast that list as a data
frame with 'as.data.frame()', the resulting columns have names derived
from the original filenames.
Example code is below. My question is, where are these names
2018 Sep 17
6
[Bug 107963] New: kernel rejected pushbuf: Invalid argument
https://bugs.freedesktop.org/show_bug.cgi?id=107963
Bug ID: 107963
Summary: kernel rejected pushbuf: Invalid argument
Product: xorg
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
Assignee: nouveau at
2011 Jan 21
1
Reading gz compressed csv file - 'incomplete line found'
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,
2017 Dec 14
0
cannot destroy connection (?) created by readLines in a tryCatch
On Thu, Dec 14, 2017 at 12:17 PM, G?bor Cs?rdi <csardi.gabor at gmail.com>
wrote:
> On Thu, Dec 14, 2017 at 7:56 PM, Gabriel Becker <gmbecker at ucdavis.edu>
> wrote:
> > Gabor,
> >
> > You can grab the connection and destroy it via getConnection and then a
> > standard close call.
>
> Yeah, that's often a possible workaround, but since this
2000 Dec 20
0
showConnections() does not show closed (or non-opened) connections though help says so (PR#784)
help on showConnections explains parameter
all logical: if true all connections, including closed ones and the standard ones are displayed. If false only open user-created connections are included.
but
> # create a file
> cat("TITLE extra line", "2 3 5 7", "", "11 13 17", file="ex.data",
+ sep="\n")
>
2009 Jul 21
1
Checking on closed file connections
Hi! I'm wondering if there's a smart way around this:
fileName= (some valid file on your system)
> fileCon=file(fileName, open="rt")
> l<-readLines (fileCon, n= 1)
>
> isOpen(fileCon)
[1] TRUE
> close(fileCon)
> isOpen(fileCon)
Error in isOpen(fileCon) : invalid connection
How do you test for a file being closed if isOpen gives you an error
2000 Dec 20
1
showConnections() does not show closed (or non-opened) connections though help says so
help on showConnections explains parameter
all logical: if true all connections, including closed ones and the standard ones are displayed. If false only open user-created connections are included.
but
> # create a file
> cat("TITLE extra line", "2 3 5 7", "", "11 13 17", file="ex.data",
+ sep="\n")
>
2000 Dec 20
1
unlink() is not synchronized with existing connections (PR#783)
> # creating a file
> cat("sddfasdf", file="tempfile")
> showConnections()
class description mode text isopen can read can write
> con <- file("tempfile", "r")
> readLines(con)
[1] "sddfasdf"
Warning message:
incomplete final line in: readLines(con, n, ok)
> showConnections()
class description mode text isopen
2006 Oct 02
0
2.3.1: interacting bugs in load() and gzfile() (PR#9271)
Hello,
If repeated calls are made to save() using the same pre-opened gzfile
connection to a file, and then the connection is closed, the objects
saved by the second and subsequent calls are not correctly restored by
repeated calls to load() with a new gzfile connection to the same file.
What follows are a session exposing the bugs, analysis (see ANALYSIS),
patches (see PATCHES), and a session
2000 Dec 20
0
unlink() is not synchronized with existing connections (PR#785)
On Wed, 20 Dec 2000 joehl@web.de wrote:
> > # creating a file
> > cat("sddfasdf", file="tempfile")
> > showConnections()
> class description mode text isopen can read can write
> > con <- file("tempfile", "r")
> > readLines(con)
> [1] "sddfasdf"
> Warning message:
> incomplete final line in: