Displaying 20 results from an estimated 20000 matches similar to: "Problem (Bug?) with readLines on Suze"
2004 Jan 12
1
ReadLines does not give results with urls
Hello,
I am using R version 1.8.1 on a linux machine (Suse 8.2.).
I have problems to use readLines() with urls.
This seems to be a problem with our proxy-server.
Downloading files work with download.file() with wget but not without:
> download.file(url = "http://cran.r-project.org/src/contrib/PACKAGES", destfile = "test.txt", method = "wget", cacheOK = FALSE)
2004 Nov 23
2
sorting without order
Hello,
In order to increase the performance of a script I'd like to sort very large vectors containing repeated integer values.
I'm not interesting in having the values sorted, but only grouped.
I also need the equivalent of index.return from the standard "sort" function:
f(c(10,1,10,100,1,10))
=>
grouped: c(10,10,10,1,1,100)
ix: c(1,3,6,2,5,4)
is there a way
2005 Sep 22
1
LPFC support in Xen ?
Hi,
Afraid I dont have a very new system to try out Xen.. It''s an ia32 PIII
machine with 1GB memory (that''s gud i believe).
When I try to build the initrd image for my xen kernel, i get error
messages complaining about missing modules, so am trying to compile them on
my own.
Could find support for the remaining three, but am left with lpfcdd.ko.
Couldnt find an appropriate
2011 Oct 03
2
file input with readLines
I am using readLines to read a fairly large ASCII file. readLines reads
a fixed number of lines, then other R code processes the data, then
readLines reads the same number of lines again, then other R code
processes the data, then ....
Sort of like:
conn<-file('filename','r')
for (chunk in 1:100000) {
Lines<-readLines(conn,n=25)
# process "Lines"
}
2011 Dec 24
2
readLines errors
Hi All,
I met a problem using readLines function to return the data from Google
maps.
readLines(url("
http://ditu.google.cn/maps/geo?q=+qianshuichong,+guichi+anhui,+CN&output=csv&key=ABQIAAAAq8Fnd_oUka-7RdS6BrD7GBTqeABoQuNTXS36G_rkiwQnKRW6GBTkns8JpKz6y6dScgB8827dlddUlg"),
n=1, warn=FALSE)
[1] "200,4,30.6528380,117.4872250"
The above code is ok because the
2005 Feb 21
2
character occurence within a string
Hello,
I'm looking for a function that counts the occurences of a given character within a string.
f('|','ab|c|d') => 2
More precisely, I need to complete a vector of strings to ensure that all elements have the same count of a "separator":
a|b|c
a
|a|b|c|d
=>
a|b|c||
a||||
|a|b|c|d
I guess that scan makes use of an internal function that would do
2018 May 10
2
readLines() behaves differently for gzfile connection
When I read a .gz file with readLines() in 3.4.3, it returns text (and a
warning). In 3.5.0, it gives a warning, but no text. Is this expected
behavior or a bug?
3.4.3:
> source_file = "1k_annotation.gz"
> readfile_con <- gzfile(source_file, "r")
> readLines(readfile_con, n = 5)
[1] "#chr\tpos\tref\talt\t
<truncated output here>
Warning message:
In
2018 Apr 26
2
readLines() for non-blocking pipeline behaves differently in R 3.5
The issue is that readLines() tries to seek (for reasons I don't
understand) in the non-blocking case, but silently fails for "stdin"
since it's a stream. This confused the buffering logic. The fix is to
mark "stdin" as unable to seek, but I do wonder why readLines() is
seeking in the first place.
Anyway, I'll get this into patched ASAP. Thanks for the report.
2018 May 10
1
readLines() behaves differently for gzfile connection
You bet - it's available on github at
https://github.com/UW-GAC/wgsaparsr/blob/master/tests/testthat/1k_annotation.gz
-Ben
On Thu, May 10, 2018 at 4:17 PM, Michael Lawrence <lawrence.michael at gene.com
> wrote:
> Would it be possible to get that file or a representative subset of it
> somewhere so that I can reproduce this?
>
> Thanks,
> Michael
>
> On Thu, May
2010 Nov 16
2
Question about readLines
Can i use "readLines" to extract only the linees with a specific word within?
If yes, how?
Tnx for help.
--
View this message in context: http://r.789695.n4.nabble.com/Question-about-readLines-tp3044701p3044701.html
Sent from the R help mailing list archive at Nabble.com.
2018 May 28
2
readLines function with R >= 3.5.0
>>>>> Martin Maechler
>>>>> on Mon, 28 May 2018 10:28:01 +0200 writes:
>>>>> Ralf Stubner
>>>>> on Fri, 25 May 2018 19:18:58 +0200 writes:
>> Dear all, I would like to draw you attention to this
>> question on SO:
>>
2013 Apr 10
1
Issue with Control-Z in a text file on Windows - readLines() appears to truncate
Working on Windows I have had to deal with CSV files that,
unfortunately, contain embedded Control-Zs, i.e. ASCII character 26 in
decimal, and the readLines() function in R on Windows (2.15.2 and
3.0.0) appears to truncate at the control-Z. There is no problem at
all on Ubuntu Linux with R 3.0.0.
Am I mistaken or is this genuine?
# Create a small file with embedded Control-Z
h3 <-
2016 Jun 06
2
readlines() truncates text file with Codepage 437 encoding
Hello r-devel,
The attached Code page 437-encoded file contains 245 characters
(including the final newline), but readLines only reads 242 of them:
> test_text <- readLines(file('437__characters.txt', encoding='437'))
Warning message:
In readLines(file("437__characters.txt", :
incomplete final line found on '437__characters.txt'
> test_text
[1]
2004 Sep 29
4
multiple match question
Hello,
I'm looking for a fast way to retrieve the position of elements from a vector which match element in another vector.
Example
va<-c('a','e')
vb<-c('a','b','c','d','e','f','e')
f(va,vb) should return c(1,5,7)
I have 2 different cases:
I) my vector vb contains only distinct values
II) my vector vb may
2009 Oct 01
2
The problem of readLines
Dear R-users,
I use "readLines" to read data, but when processing the large data set, there are few files which can not be readed in:
48: In readLines(name_c[i]) ... :
incomplete final line found on 'C:/Documents and Settings/lma/My Documents/habitdata/244052900243997/calllog/calllog_log-20050505T121611.txt'
...
Whats the problem about this?
Regards,
Tammy
2005 Jan 12
2
mydataframe$colname: using substring of colname may also match some column (PR#7496)
Full_Name: Marc Mamin
Version: 1.8, 2.0.0
OS: Windows & Linux
Submission from: (NULL) (217.17.202.254)
Using only the beginning of a column name will match it:
>aaa<-1
>df<-as.data.frame(aaa)
>names(df)
[1] "aaa"
>df$a
[1] 1 !!!!!!!!! (I expect df$a to be undefind)
>df$x
>NULL
Compare with:
> df["aaa"]
aaa
1 1
> df["a"]
2017 Dec 14
2
cannot destroy connection (?) created by readLines in a tryCatch
Consider this code. This is R 3.4.2, but based on a quick look at the
NEWS, this has not been fixed.
tryCatch(
readLines(tempfile(), warn = FALSE)[1],
error = function(e) NA,
warning = function(w) NA
)
rm(list=ls(all.names = TRUE))
gc()
showConnections(all = TRUE)
If you run it, you'll get a connection you cannot close(), i.e. the
last showConnections() call prints:
?
2010 May 05
2
readLines with space-delimiter?
Hi,
I am reading a large space-delimited text file into R (41 columns and many
rows) and need to do run each row's values through another R object and then
write to another text file. So, far using readLines and writeLines seems to
be the best bet. I've gotten the data exchange working except each row is
read in as one 'chunk', meaning the row has all values between two quotes
2004 Oct 20
2
does R provides a wait or pause function?
Hello,
I'd like to insert a "wait" function in my code.
The reason is that I output timestamped files and I want to ensure that at least 1 second separes 2 files to avoid overwriting the previous file.
Thanks,
Marc Mamin
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