Displaying 20 results from an estimated 500 matches similar to: "opening a file from within a zipfile that is online"
2007 May 23
2
saving datafreame object problem
Do I miss here something?
dtaa =
read.table("http://www.ats.ucla.edu/stat/mplus/examples/ma_snijders/mlbook1.dat",
sep=",")
head(dtaa) # shows the data as it should be
save(dtaa,"dtaa",file="c:/dtaa")
d = load("c:/dtaa")
head(d) # all data is lost, it only shows [1] "dtaa" "dtaa"
Thanks for your hint on this.
2007 May 21
1
can I get same results using lme and gls?
Hi All
I was wondering how to get the same results with gls and lme. In my lme, the
design matrix for the random effects is (should be) a identity matrix and
therefore G should add up with R to produce the R matrix that gls would report
(V=ZGZ'+R). Added complexity is that I have 3 levels, so I have R, G and say H
(V=WHW'+ZGZ'+R). The lme is giving me the correct results, I am
2007 Jun 01
2
how to specify starting values in varIdent() of lme()
I was reading the help but just did not get how to specify starting values for
varIdent() of the lme() function, although I managed to do it for corSymm().
Do I specify the values just as they are printed out in an output, like c(1,
1.3473, 1.0195). Or do I need to take the residual and multiply it with these
like c(0.2235, 0.2235*1.3473, 0.2235*1.0195)
or any other form that I dont know of?
2007 Dec 19
1
unexpected behavior from gzfile and unz
I get unexpected behavior from "readLines()" and
"scan()" depending on how the file is opened with
"gzfile" or "unz". More specifically:
> file <- gzfile("file.gz")
> readLines(file,1)
[1] "a\tb\tc"
> readLines(file,1)
[1] "a\tb\tc"
> close(file)
It seems that the stream is rewound between calls to
readLines.
2024 Oct 25
1
readLines() and unz() and non-empty final line
Hi,
you could use "scan" instead, it seems to work fine also when wrapped
around "unz".
Or, alternatively, you could use "unzip" instead of "unz". It works as
expected, i.e. reads the last incomplete line and throws a warning about
this.
So it seems to me that "unz" creates a non-blocking connection, whereas
"unzip" creates a
2024 Oct 25
1
readLines() and unz() and non-empty final line
Hi again,
The unz connection is non-blocking by default. I checked do_unz which calls
R_newunz which calls init_con and the only place in any of those functions
that sets 'blocking' is init_con which sets it to FALSE:
https://github.com/wch/r-source/blob/0c26529e807a9b1dd65f7324958c17bf72e1de1a/src/main/connections.c#L713
I'll open an issue on R-bugzilla and see if they're
2003 Jul 11
2
unz()
I am having problems getting the unz() function to work as a connection to
start reading a file...
z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
readLines(z,2)
yields the following problems:
> z <- unz("c:/temp/stoxx.zip", "close_tmi_components.txt", "r")
Error in unz("c:/temp/stoxx.zip",
2012 Jan 31
2
how to unzip files in R
Hi,
I have downloaded a bunch of bz2 files. I wonder if R will be able to
unzip them in a batch mode or even one at a time?
I was looking at the unz function. But it didn't work well. Say I have
a bz2 file in H:/Temp/65502805_532.pair.bz2. Anyone has any
suggestion?
thanks
John
> setwd("H:\\Temp\\")
> getwd()
[1] "H:/Temp"
>
2024 Oct 24
3
readLines() and unz() and non-empty final line
But note:
> zip("hello.zip", "hello.txt")
updating: hello.txt (stored 0%)
> readChar(unz("hello.zip","hello.txt"),100)
[1] "hello"
I leave it to you and other wiser heads to figure out.
Cheers,
Bert
On Thu, Oct 24, 2024 at 8:57?AM Iris Simmons <ikwsimmo at gmail.com> wrote:
> Hi Mikko,
>
>
> I tried running a few
2024 Oct 24
2
readLines() and unz() and non-empty final line
Dear list,
I'm seeing a strange interaction with readLines() and unz() when reading
a file without an empty final line. The final line gets dropped silently:
> cat("hello", file = "hello.txt")
> zip("hello.zip", "hello.txt")
adding: hello.txt (stored 0%)
> readLines(unz("hello.zip", "hello.txt"))
character(0)
The
2009 Jul 28
2
Looking for example of usage of function unz
I would greatly appreciate some example of correct usage of function unz.
I have to download and uncompress the following web compressef file:
ftp://ftp.sanger.ac.uk/pub/mirbase/targets/v5/arch.v5.txt.homo_sapiens.zip
I tried the following command that does not work:
Targets.rec <- readLines(zz <- unz("ftp://ftp.sanger.ac.uk/pub/mirbase/targets/v5/arch.v5.txt.homo_sapiens.zip"))
2007 Mar 30
1
zip.file.extract on Windows
Hello R-help!
I just wanted to share a tip might help others of us stuck on R.
The documentation for zip.file.extract is rather scant, and a few
examples would.
When using zip.file.extract, the first argument should be the full (or
relative) path and the second the name of the zip file, it seems.
While this is counterintuitive to me, that it should get the part from
the first argument,
2005 Aug 24
1
How to get the list of the files when you read zip file by gzfile or unz
Dear List,
Does somebody know how to get the filename lists in the ziped when
"gzfile" or "unz" command is used ?
Thanks for your help.
Shawn Lee
--
The information contained in this communication and any atta...{{dropped}}
2007 Aug 20
1
Ask for functions to obtain partial R-square (squared partial correlation coefficients)
The partial R-square (or coefficient of partial determination, or
squared partial correlation coefficients) measures the marginal
contribution of one explanatory variable when all others are already
included in multiple linear regression model.
The following link has very clear explanations on partial and
semi-partial correlation:
http://www.psy.jhu.edu/~ashelton/courses/stats315/week2.pdf
In
2012 May 30
1
reading file in zip archive
Hi List
I have a series of zip archives each containing several files. One of these files is called goCats.txt and I would like to read it into R from the archive. It's a simple tab delimited text file.
pathToZip <- '/home/iain/Documents/Work/Results/bovineMacRNAData/deAnalysis/afInfection/commonNorm/twoHrs/af2hrs.zip'
z <- unz(pathToZip, 'goCats.txt', 'r')
zT
2008 Oct 09
1
Reading zipped data directly from an FTP url
Hi
Sorry, I am clearly missing something here.
I want to read this file directly:
ftp://ftp.sanger.ac.uk/pub/mirbase/targets/v5/arch.v5.txt.gallus_gallus.
zip
I tried using
read.table(gzfile("ftp://ftp.sanger.ac.uk/pub/mirbase/targets/v5/arch.v5
.txt.gallus_gallus.zip"))
But I got an error:
Error in open.connection(file, "r") : cannot open the connection
In addition:
2010 Jul 09
4
Mysterious behavior
I had trouble with some tests for the survival suite last night that I
cannot explain.
Framework: Ubuntu Linux, R2.11.
For testing survival I have a separate directory and Makefile. I
pull everything into the local .RData, no packages, library, or
namespace. (It's easier to add test modifications to a routine in a
chain of calls).
A test of survreg + psline would fail because
2006 Sep 25
1
Passing R connection as argument to a shell command on Windows
Hello, is there a way to pass a connection to a file in a zipped archive as
argument (instead of a file name of unzipped file) to shell command "cut". In
general, is it possible to pipe output of a R function to a shell command? How?
I want to do something like:
z = unz("zipArchive.zip", "fileASCII.ASC")
# open connection
open(z)
# cut lines of the ASCII file in
2006 Jun 14
0
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2003 Jul 24
0
unz( "x.zip", "y.csv" ) != pipe( "unzip -p x.zip y.csv" )
Not sure this is a bug in R.
Maybe its a bug in my understanding of unz().
The character 'b2' (hexadecimal) is in position 535 of line 1
of 'naughty.csv'. This character appears as superscript '2' and came to me
in an EXCEL file that I converted to text in a comma separated ( *.csv )
format.
The first line gets truncated by readLines after 534 characters using
unz():