Displaying 20 results from an estimated 2000 matches similar to: "How to model attribute and attribute-value dependencies"
2006 Jun 25
0
storing attribute legal values in model and/or database
I have a rails application which has a table ''cells'' which contains some
80 or
so attribute fields (related to the electrical characteristics of macros
that
are hooked together, instantiated in silicon and become microchips).
I want to also store the legal values for many of those attribute fields
in
another database table. The problem is that
1) the sub-set of attributes
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),
2010 Jul 14
1
Arrange values on a timeline
I have a set of labels arranged along a timeframe in a. Each label has
a timestamp and marks a state until the next label. The dataframe a
contains 5 such timestamps and 5 associated labels. This means, on a
continious scale between 1-100, there are 5 markers. E.g. 'abc' marks
the timestampls between 10 and 19, 'def' marks the timestamps between
20 and 32, and so on.
a <-
2006 Oct 27
3
Suppress blanks/spaces in character
Hi all
I'm have a character vector and would like to suppress the blanks if there are more than one after the other.
Example:
Character value is: "abc def ghi"
The result should be: "abc def ghi"
I know that it's possible to delete the leading blanks with the command "trim". But how can I delete blanks within a character?
Thank you very much in
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
+++
2009 Aug 11
1
re placePatterns() for multiple words replacement in tm
Hi all,
I wonder how you can replace all words that need to be changed using
replacePatterns(). The following is my code. I want to replace both "abc"
and "def" to " Yes ". However, I can only replace the first occurrence in
sample[[1]].
> sample[[1]]
[1] abc def ghi
> change <- c("abc","def")
>
2010 Jul 14
2
Merging columns along time line
I am resending this, as I believe it has not arrived on the mailing
list when I first emailed.
I have a set of labels arranged along a timeframe in a. Each label has
a timestamp and marks a state until the next label. The dataframe a
contains 5 such timestamps and 5 associated labels. This means, on a
continious scale between 1-100, there are 5 markers. E.g. 'abc' marks
the timestampls
2005 Aug 15
3
How to repeat code snippet for several variables in a data frame?
Dear all,
I have a data frame containing the results of an experiment. Like this:
a<-seq(1,4,by=1)
b<-seq(1,2,by=1)
test<-expand.grid(b,a,a)
colnames(test)<-c("replicates","bins", "groups")
test$abc <- rnorm(32)
test$def <- rnorm(32)
test$ghi <- rnorm(32)
test
The following code snippet aggregates the data for one variable and then
draws a
2011 May 24
3
[Bug 8162] New: MKDIR Fail
https://bugzilla.samba.org/show_bug.cgi?id=8162
Summary: MKDIR Fail
Product: rsync
Version: 3.0.7
Platform: x86
OS/Version: Linux
Status: NEW
Severity: blocker
Priority: P5
Component: core
AssignedTo: wayned at samba.org
ReportedBy: yannick at magikdo.com
QAContact: rsync-qa at
2012 Aug 27
4
?nchar ?strsplit
Hi, my data frame is
x<-data.frame(ID=c("abc/def","abc/def/ghi","abc","mno/pqr/st/ab"))
I want to split my column ID using "/" as the place to split. How can I do that without telling the code how many sub-columns. I could use nchar(gsub("[^/]","",x$ID)) to get how many "/" are in each row of the column, but could
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
2009 Oct 02
3
break up a string into strings with a fixed length
dear all,
I have some very long strings and would like to break up each long string
into multiple strings with a fixed length, e.g. to break up
abcdefghijkl
into
abc, def, ghi, jkl
I tried a couple of commands but was not successful. Any help will be
appreciated.
Best,
Jimmy
--
View this message in context:
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 <-
2002 Feb 07
1
no built in EXE module loaded did you specify an .spec
Hello,
I have this problem when i start any program with wine i checked and
doublechecked my config it still not helps
BTW i'm not using any of original windows (i think native you call it) files
or dlls or registry
I hope i said enough
root:/home/djcoke# wine d:\\setup.exe
the error is =No built-in EXE module loaded! Did you create a .spec file?
Thanx for any anwsers
DjCoke
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
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 ++--
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
2005 Dec 21
2
ActiveRecord Error with << in Collection
Hi
I get a following error:
ActiveRecord::AssociationTypeMismatch in Cmdb#create
ConfigurationItemAttributeValue expected, got Array
RAILS_ROOT: ./script/../config/..
Application Trace | Framework Trace | Full Trace
c:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.13.2/lib/active_record/associations/association_collection.rb:128:in
`raise_on_type_mismatch''
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
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