Displaying 20 results from an estimated 500 matches similar to: "break up a string into strings with a fixed length"
2011 Jan 10
2
Calculating Portfolio Standard deviation
Dear R helpers
I have following data
stocks <- c("ABC", "DEF", "GHI", "JKL")
prices_df <- data.frame(ABC = c(17,24,15,22,16,22,17,22,15,19),
DEF = c(22,28,20,20,28,26,29,18,24,21),
GHI = c(32,27,32,36,37,37,34,23,25,32),
2005 May 30
4
Very simple traffic shaping script for H.323
Hello -
What I want to do seems very simple - I want to make sure any H.323
traffic gets processed before anything else entering or leaving this
network. The network has a videoconferencing device on the LAN at
192.168.16.4. A Linux firewall NATs an external IP Address to this
internal address and I have appropriate SNAT and DNAT rules that work.
The NAT and connection tracking rules all work
2014 Jan 23
7
[PATCH 0/7] Various fixes for Ceph drives and parsing libvirt XML.
Miscellaneous fixes to:
- Handling of Ceph drives now works end-to-end (RHBZ#1026688).
- In particular, you can now use rbd:/// URIs in guestfish (and
they work).
- Parse Ceph & NBD network drives from libvirt XML correctly, so
that existing domains with Ceph/NBD drives can be added
(eg. using guestfish -d option).
- Add more testing of the above.
2011 Dec 01
2
Counting the occurences of a charater within a string
I am new to R but am experienced SAS user and I was hoping to get some help on counting the occurrences of a character within a string at a row level.
My dataframe, x, is structured as below:
Col1
abc/def
ghi/jkl/mno
I found this code on the board but it counts all occurrences of "/" in the dataframe.
chr.pos <- which(unlist(strsplit(x,NULL))=='/')
chr.count <-
2014 Feb 03
1
[PATCH] hivex: python: value_value no longer generates Unicode strings
This fixes Github issue #2 reported by "kupiakos".
<https://github.com/libguestfs/hivex/issues/2>
---
generator/generator.ml | 2 +-
python/t/210-setvalue.py | 26 +++++++++++++++++---------
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/generator/generator.ml b/generator/generator.ml
index 908c5f3..02aaf12 100755
--- a/generator/generator.ml
+++
2013 Nov 18
3
Sending a matrix in an email
I have a matrix which has colnames and I would like to send this matrix using sendmailR. How can I convert this simple matrix to a format which can be used as the body variable in sendmailR? I see how I can create a file attachment using mime_part but I would like to send the matrix in the body of the email.
The matrix looks like:
ABD DEF GHI JKL MNO TOT
[1,] 0.44 0.81 1.67 0.37
2008 Jun 12
2
Request for added functionality - tracking and blocking attacks
Somebody please forward this, if this is not an appropiate place
to ask the OpenSSH developers for a new feature.
As many of us have seen, any sshd left open on the internet eventually
becomes the target of password guessing attacks. I am aware of
tools for scanning the security logs, and manipulating iptables to
block ongoing attacks, but I am not aware of a way to configure
sshd itself to
2010 Dec 05
3
grep for strings
I am trying to find the function where I can search for a pattern in a
text string (I thought I could use grep for this but no :().
> x
[1] "abcdefghijkl"
I want to find the positions (i.e. equivalent of nchar) for "cd" and
in case there are multiple hits .. then the results as a array
Thank you.
2014 Jan 15
4
[PATCH 1/4] hivex: Python 2.6 does not have sysconfig.
---
configure.ac | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 6785037..203f34f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -329,8 +329,8 @@ AS_IF([test "x$enable_python" != "xno"],
AC_MSG_CHECKING([for Python extension suffix (PEP-3149)])
if test -z "$PYTHON_EXT_SUFFIX"; then
2019 Jan 17
1
[hivex PATCH] ruby: improve test functions
Use better functions to check for proper values instead of assert:
- refute_nil for non-null functions
- assert_equal for checking equality
Also, make sure that the parameters for assert_equal are correct:
expected value, then got value.
---
ruby/tests/tc_120_rlenvalue.rb | 4 ++--
ruby/tests/tc_130_special.rb | 12 ++++++------
ruby/tests/tc_200_write.rb | 4 ++--
2011 Nov 04
1
Creating a sequence from two samples with several constraints (frequency and repeats)
I'm attempting to create a sequence for an experiment and am hoping I can
use R to create it. It has several constraints:
(1) It is made up of two sequences (red and green) that have 4 different
repeating triplets (e.g. T1=ABC T2=DEF T3=GHI JKL)
(2) Each sequence has the following constraints: (a) there cannot be
repeating triplets (e.g. T1 T1), (b) there cannot be repeating triplet
pairs
2005 May 28
1
(PR#7899) seek(con, 0, "end", rw="r") does not always work
Tony Plate wrote:
> ligges@statistik.uni-dortmund.de wrote:
>
>> tplate@blackmesacapital.com wrote:
>>
>>
>>> I've noticed that seek(con, 0, "end", rw="r") on a file connection
>>> does not always work correctly after a write (R 2.1.0 on Windows).
>>>
>>> [Is a call to fflush() needed inside file_seek() in
2009 Sep 15
3
how to load only lines that start with a particular symbol
Dear all,
I have DNA sequence data which are fasta-formatted as
>gene A;.....
AAAAACCCC
TTTTTGGGG
CCCTTTTTT
>gene B;....
CCCCCAAAA
GGGGGTTTT
I want to load only the lines that start with ">" where the annotation
information for the gene is contained. In principle, I can remove the
sequences before loading or after loading all the lines. I just wonder if
there's a way to
2016 Oct 04
1
error handling in strcapture
It is also not catching the cases where the number of capture expressions
does not match the number of entries in proto. I think all of the
following should give an error about the mismatch.
> strcapture("(.)(.)", c("ab", "cde", "fgh", "ij", "lm"),
proto=list(A="",B="",C=""))
A B C
1 a b cd
2 d
2007 Apr 18
1
[Bridge] Setting the interfaces in promiscuous mode
Hello,
I have been using the bridging facilities provided by Linux (vanilla
2.6.7 SMP with UML skas host patch applied) to bridge a regular
physical ethernet network (on interface eth0) with a virtual network
(on interface tap0, cf uml_switch,
http://user-mode-linux.sourceforge.net/networking.html). A couple of
virtual machines (run using user-mode linux, a tool that enables you
to run linux
2010 Apr 08
1
Strange csv parsing problem
> url <- "http://dl.dropbox.com/u/41902/22240.csv"
>
> read.csv(url)[, 1]
[1] "oppose" NA "oppose" "support"
> read.csv(url, header = F)[, 1]
[1] "url"
[2] "http://maplight.org/us-congress/bill/109-hr-5825/387248"
[3] "http://maplight.org/us-congress/bill/110-hr-3546/378743"
[4]
2014 Aug 16
7
[hivex] [PATCH 0/6] Python fixes for node_set_value
Hi,
This patch series is based on a prior patch[1], splitting off changes as
requested and incorporating feedback from Richard Jones. It introduces type
validation to avoid segmentation faults (instead, it reports an exception) and
fixes handling of the bytes type in Python 3.
Major changes since that series:
- Drop newly introduced support for integer types for DWORD/QWORDS
- Reject Unicode
2018 Apr 16
2
alpha transparency doesn't work for lines when xpd=TRUE
Dear R-devel,
I think I've found a bug - the alpha transparency doesn't work when plotting lines with xpd = TRUE.
#works
plot(1:20, col="#1874CD", xpd=T, type="l")
#works
plot(1:20, col="#1874CD50", xpd=F, type="l")
#doesn't work
plot(1:20, col="#1874CD50", xpd=T, type="l")
Thank you.
Jim
[[alternative HTML version
2011 Oct 18
1
Function to "lump" factors together?
Sorry about the odd terminology, but I suspect that my intent might be
completely missed had I used "aggregate" or "classify" (each of which
appears to have some rather special meanings in statistical analysis and
modeling).
I have some data about software builds; one of the characteristics of
each is the name of the branch.
A colleague has generated some fairly interesting
2016 Oct 04
2
error handling in strcapture
I noticed a problem in the strcapture from R-devel (2016-09-27 r71386),
when the text contains a missing value and perl=TRUE.
{
# NA in text input should map to row of NA's in output, without
warning
r9p <- strcapture(perl = TRUE, "(.).* ([[:digit:]]+)", c("One 1", NA,
"Fifty 50"), data.frame(Initial=factor(), Number=numeric()))
e9p <-